52639 + Interview Questions in Secondary School in Chemistry Page 38 InterviewSolution

1851.	Name /give examplesa. Petroleum productb. Cosmeticsc. Buliding materialsd. Explosives
Answer» ANSWER: PETROL,VASELINE,GLASS,GUNPOWDER

1851.

Name /give examplesa. Petroleum productb. Cosmeticsc. Buliding materialsd. Explosives

Answer»

ANSWER:

PETROL,VASELINE,GLASS,GUNPOWDER

Discussion

1852.	साधारणतया हैलोजनों का सामान्य इलेक्ट्रॉनिक विन्यास........होता है।
Answer» ANSWER: NS2 np5 Explanation: n= 1-7 it having OXIDATION state of -1.

1852.

साधारणतया हैलोजनों का सामान्य इलेक्ट्रॉनिक विन्यास........होता है।

Answer»

ANSWER:

NS2 np5

Explanation:

n= 1-7

it having OXIDATION state of -1.

Discussion

1853.	Explain in detail about classification of solution on the basis of amount of solute
Answer» Answer: Plz mark as BRAINLIEST....I BEG u plz........ Explanation: On the Basis of the Amount of Solute Added Based on the amount of solute present in the solution, we can classify them into the following TYPES. Unsaturated Solution: An unsaturated is one that can dissolve more solute at a definite temperature. It MEANS that we can still add more solute to the SOLVENT.

1853.

Explain in detail about classification of solution on the basis of amount of solute

Answer»

Answer:

Plz mark as BRAINLIEST....I BEG u plz........

Explanation:

On the Basis of the Amount of Solute Added

Based on the amount of solute present in the solution, we can classify them into the following TYPES. Unsaturated Solution: An unsaturated is one that can dissolve more solute at a definite temperature. It MEANS that we can still add more solute to the SOLVENT.

Discussion

1854.	An element X belongs to 3rd period and 17 group state number of valence electrons in it
Answer» ANSWER: As all the elements which BELONG to 17th group have a valency 1 and valence ELECTRONS as 7.

1854.

An element X belongs to 3rd period and 17 group state number of valence electrons in it

Answer»

ANSWER:

As all the elements which BELONG to 17th group have a valency 1 and valence ELECTRONS as 7.

Discussion

1855.	What happens when a base is exposed to air
Answer» ANSWER: NOTHING HAPPENS EG:SOPE Explanation:I HOPE IT IS ENOUGH

1855.

What happens when a base is exposed to air

Answer»

ANSWER:

NOTHING HAPPENS

EG:SOPE

Explanation:I HOPE IT IS ENOUGH

Discussion

1856.	How many moles are there in 28g of Nitride ion?
Answer» 12.04 ×10²³ ATOMS are present in 28 g of nitride ion . *hope it helps you mate. please* *thank* *and* *MARK* my answer as BRAINLIEST. @ *ANUS*HA ❤✌

1856.

How many moles are there in 28g of Nitride ion?

Answer»

12.04 ×10²³ ATOMS are present in 28 g of nitride ion .

hope it helps you mate.

please thank and MARK my answer as BRAINLIEST.

@ ANUSHA ❤✌

Discussion

1857.	Three vectors satisfy the relation a.b=0 and a.c=0then how is a parallel to b×c
Answer» ANSWER: dflifpipfpcupgij0bob. vbdydoiv NSN ansba s s d.

1857.

Three vectors satisfy the relation a.b=0 and a.c=0then how is a parallel to b×c

Answer»

ANSWER:

dflifpipfpcupgij0bob. vbdydoiv NSN ansba s s d.

Discussion

1858.	Jal ke jamne par uske anu ke bich ki duri badhti h ya ghahti h
Answer» Answer: EXPLANATION: Duri ghati KYU ki sabi particles paas AANE par wo solid ho JATA hai

1858.

Jal ke jamne par uske anu ke bich ki duri badhti h ya ghahti h

Answer»

Answer:

EXPLANATION:

Duri ghati KYU ki sabi particles paas AANE par wo solid ho JATA hai

Discussion

1859.	1.Tetrachloromethane and water can be separated using a separating funnel. What can bededuced from this statement?A They do not mix together.B They have different boiling points.с They have different colours.D They have different densities.2.What method would you use to obtain pure water from a mixture of water and ink? State, withreasons, what happens to the colour of the mixture during the process.3.A student was given some statements about simple distillation and fractional distillation. Shewas asked to consider whether each of the statements is true or false. Her answers are shownbelow. State, with reasons, whether her answers are correct.StatementTrue/FalseTrue(a) Both simple distillation and fractional distillation require acondenser and a distillation flask.False(b) Simple distillation is used to separate a solute from a solvent.(c) Fractional distillation can only be used when the boiling points ofthe liquids in the mixture are far apart.FalseTrue(d) During fractional distillation, the liquid with the highest boilingpoint distils over first.
Answer» Answer: 1-A , 2 - Chromatography Explanation: A seperating funnel is USED for IMMISCIBLE liquids such as OIL and water , THUS STATEMENT A is correct.

1859.

1.Tetrachloromethane and water can be separated using a separating funnel. What can bededuced from this statement?A They do not mix together.B They have different boiling points.с They have different colours.D They have different densities.2.What method would you use to obtain pure water from a mixture of water and ink? State, withreasons, what happens to the colour of the mixture during the process.3.A student was given some statements about simple distillation and fractional distillation. Shewas asked to consider whether each of the statements is true or false. Her answers are shownbelow. State, with reasons, whether her answers are correct.StatementTrue/FalseTrue(a) Both simple distillation and fractional distillation require acondenser and a distillation flask.False(b) Simple distillation is used to separate a solute from a solvent.(c) Fractional distillation can only be used when the boiling points ofthe liquids in the mixture are far apart.FalseTrue(d) During fractional distillation, the liquid with the highest boilingpoint distils over first.

Answer»

Answer:

1-A , 2 - Chromatography

Explanation:

A seperating funnel is USED for IMMISCIBLE liquids such as OIL and water , THUS STATEMENT A is correct.

Discussion

1860.	3 nitro heptane structure.....answer with attachment plzzzzz
Answer» ANSWER: RESULT for 3 nitro heptane structure 3-Methylheptane is a BRANCHED ALKANE isomeric to octane. Its structural formula is CH3CH2CH(CH3)CH2CH2CH2CH3. It has one stereocenter. Its refractive index is 1.398 (20 °C, D).

1860.

3 nitro heptane structure.....answer with attachment plzzzzz

Answer»

ANSWER:

RESULT for 3 nitro heptane structure

3-Methylheptane is a BRANCHED ALKANE isomeric to octane. Its structural formula is CH3CH2CH(CH3)CH2CH2CH2CH3. It has one stereocenter. Its refractive index is 1.398 (20 °C, D).

Discussion

1861.	Which one of the following will turn red litmus blue? *1 point
Answer» ANSWER: where are the OPTIONS???

1861.

Which one of the following will turn red litmus blue? *1 point

Answer»

ANSWER:

where are the OPTIONS???

Discussion

1862.	why do some bridges have weight limits that depend on how many wheels or axles the crossing vehicle has?
Answer» Answer: Because it can HOLD the weight of CERTAIN VEHICLES of certain wheels

1862.

why do some bridges have weight limits that depend on how many wheels or axles the crossing vehicle has?

Answer»

Answer:

Because it can HOLD the weight of CERTAIN VEHICLES of certain wheels

Discussion

1863.	Can nonsoluble bases be ionized?
Answer» $\huge{\textbf{\underline{Answer:-}}}$ ⟿An acid in a BASE SOLUTION will ionize; a base in an acid will ionize. LIKE solutions do not ionize. When pKa is less than pH, around 99 percent to 100 percent of the DRUG will ionize.

1863.

Can nonsoluble bases be ionized?

Answer»

$\huge{\textbf{\underline{Answer:-}}}$

⟿An acid in a BASE SOLUTION will ionize; a base in an acid will ionize. LIKE solutions do not ionize. When pKa is less than pH, around 99 percent to 100 percent of the DRUG will ionize.

Discussion

1864.	What is it's answer.
Answer» The OXYGEN CARRYING PIGMENT of BLOOD is HEMOGLOBIN

Discussion

1865.	EmptedQ: 12Lanthanide contraction can explain ?ion ListN34AAtomic number of the series678101112BIonic radius of series4151681920С22324Density of the series527283132DNumber of extra nuclear electrons3536O39404344< Prev. QuestionNext Question >Finish the ExamMark for Review Clear Responsee S
Answer» Answer: ATOMIC RADIUS can explain the lanthoid CONTRACTION Explanation: DUE to lanthanoid contraction atomic radius of lanthanoid are same

1865.

EmptedQ: 12Lanthanide contraction can explain ?ion ListN34AAtomic number of the series678101112BIonic radius of series4151681920С22324Density of the series527283132DNumber of extra nuclear electrons3536O39404344< Prev. QuestionNext Question >Finish the ExamMark for Review Clear Responsee S

Answer»

Answer:

ATOMIC RADIUS can explain the lanthoid CONTRACTION

Explanation:

DUE to lanthanoid contraction atomic radius of lanthanoid are same

Discussion

1866.	Write Chemical reaction of iron (fe),magnesium (mg) and calcium (ca) with hydrochloric acid (Hcl) and sulphuric acid (H2so4) . Plzz send me a only reaction means equation type anwer jse books me hota h and aaj raat me hi dena mera question ka answer plzzz!!!!
Answer» your EQUATIONS are in above PICTURE.

1866.

Write Chemical reaction of iron (fe),magnesium (mg) and calcium (ca) with hydrochloric acid (Hcl) and sulphuric acid (H2so4) . Plzz send me a only reaction means equation type anwer jse books me hota h and aaj raat me hi dena mera question ka answer plzzz!!!!

Answer»

your EQUATIONS are in above PICTURE.

Discussion

1867.	For n=4, Which one of the following value of I is not possible?
Answer» ANSWER: the POSSIBLE VALOR for 4 is n=12

1867.

For n=4, Which one of the following value of I is not possible?

Answer»

ANSWER:

the POSSIBLE VALOR for 4 is n=12

Discussion

1868.	Cu crystallizes in fcc unit cell with edge length of 495pm. What is the radius of Cu atom ?
Answer» ANSWER: For FCC unit CELL : a = (2√2)*r r = a/(2√2) = 495/(2√2) = 175 pm Hope it will be HELPFUL ✌️

1868.

Cu crystallizes in fcc unit cell with edge length of 495pm. What is the radius of Cu atom ?

Answer»

ANSWER:

For FCC unit CELL :

a = (2√2)*r

r = a/(2√2)

= 495/(2√2) = 175 pm

Hope it will be HELPFUL ✌️

Discussion

1869.	what method would you use to obtain pure water from a mixture of water and ink? state with reasons , what happens to the colour of the mixture during the process. answer in detail plz with example . ans fast
Answer» FILTRATION is the TECHNIQUE USED to PURIFY

1869.

what method would you use to obtain pure water from a mixture of water and ink? state with reasons , what happens to the colour of the mixture during the process. answer in detail plz with example . ans fast

Answer»

FILTRATION is the TECHNIQUE USED to PURIFY

Discussion

1870.	The units of viscosity is
Answer» The SI unit of DYNAMIC viscosity is the newton-second per square meter ( N·s / m2). The SI unit of viscosity is the PASCAL second [Pa s], which has no SPECIAL name. *hope it HELPS you mate. please thank and Mark my ANSWER as brainliest. @ ANUS*HA ❤✌

1870.

The units of viscosity is

Answer»

The SI unit of DYNAMIC viscosity is the newton-second per square meter ( N·s / m2).

The SI unit of viscosity is the PASCAL second

[Pa s], which has no SPECIAL name.

hope it HELPS you mate.

please thank and Mark my ANSWER as brainliest.

@ ANUSHA ❤✌

Discussion

1871.	Accretion: at normal pressure the boiling point of water is 100 Celsius for 3 70 3.15 k .Reason: as the pressure increases boiling point of water also increases.A. both association a and reason or true and reason are is the correct explanation of the assertion aB. Both assertion and reason our true but reason our is not the correct explanation of assertion aC. Assertion is true but recent are is false.D. Assertion a is false but reason r is true
Answer» Answer: ${\huge{\boxed{\red{\mathcal{Hello}}}}}$ D. ASSERTION a is false but REASON R is TRUE

1871.

Accretion: at normal pressure the boiling point of water is 100 Celsius for 3 70 3.15 k .Reason: as the pressure increases boiling point of water also increases.A. both association a and reason or true and reason are is the correct explanation of the assertion aB. Both assertion and reason our true but reason our is not the correct explanation of assertion aC. Assertion is true but recent are is false.D. Assertion a is false but reason r is true

Answer»

Answer:

${\huge{\boxed{\red{\mathcal{Hello}}}}}$

D. ASSERTION a is false but REASON R is TRUE

Discussion

1872.	Why phenol is less polar than ethenol? Give proper reason.
Answer» ANSWER: Phenols are more ACIDIC than phenols because delocalization of ELECTRONS takes place in phenols by resonance . $Body{ background-color: cyan; font-family: cursive; } .glow{ font-size: 80px; color: #fff; text-align: center; -webkit-animation: glow 1s ease-in-out infinite alternate; -moz-animation: glow 1s ease-in-out infinite alternate; animation: glow 1s ease-in-out infinite alternate; } @-webkit-keyframes glow{ from{ text-shadow: 0 0 10px #fff, 0 0 20px #fff, 0 0 30px #e60073, 0 0 40px #e60073, 0 0 50px #e60073, 0 0 60px #e60073, 0 0 70px #e60073; } } Mr.Raftaar$

1872.

Why phenol is less polar than ethenol? Give proper reason.

Answer»

ANSWER:

Phenols are more ACIDIC than phenols because delocalization of ELECTRONS takes place in phenols by resonance .

$Body{ background-color: cyan; font-family: cursive; } .glow{ font-size: 80px; color: #fff; text-align: center; -webkit-animation: glow 1s ease-in-out infinite alternate; -moz-animation: glow 1s ease-in-out infinite alternate; animation: glow 1s ease-in-out infinite alternate; } @-webkit-keyframes glow{ from{ text-shadow: 0 0 10px #fff, 0 0 20px #fff, 0 0 30px #e60073, 0 0 40px #e60073, 0 0 50px #e60073, 0 0 60px #e60073, 0 0 70px #e60073; } } Mr.Raftaar$

Discussion

1873.	(iii)निम्न में से कौन-सा ऑक्साइड प्रबलतम अम्लीय है--(अ) H20(ब) Al203(स) CO2(द) SO2
Answer» सबसे प्रबलतम अम्लीय ऑक्साइड $SO_2$ है\| अतः विकल्प (द) सही है\| व्याख्या: $H_2O$ अर्थात जल सामान्य अवस्था में उदासीन होता है अर्थात यह न तो अम्लीय न तो क्षारीय होता है (जल का PH = 7) $Al_2O_3$ एक धात्विक ऑक्साइड है\| यह अम्लीय और क्षारीय दोनों तरह से बर्ताव कर सकता है\| अतः यह प्रबलतम अम्लीय नहीं होगा\| अधात्विक ऑक्साइड अम्लीय होते हैं $CO_2$ तथा $SO_2$ दोनों अम्लीय ऑक्साइड हैं परंतु अतः सबसे प्रबलतम अम्लीय ऑक्साइड $SO_2$ है\| आशा है यह उत्तर आपकी सहायता करेगा\| और जानिये: प्र. निम्न में से कौन सा सर्वाधिक अम्लीय यौगिक है? यहाँ जानिये: brainly.in/question/16234667

1873.

(iii)निम्न में से कौन-सा ऑक्साइड प्रबलतम अम्लीय है--(अ) H20(ब) Al203(स) CO2(द) SO2

Answer»

सबसे प्रबलतम अम्लीय ऑक्साइड $SO_2$ है|

अतः विकल्प (द) सही है|

व्याख्या:

$H_2O$ अर्थात जल सामान्य अवस्था में उदासीन होता है अर्थात यह न तो अम्लीय न तो क्षारीय होता है (जल का PH = 7)

$Al_2O_3$ एक धात्विक ऑक्साइड है| यह अम्लीय और क्षारीय दोनों तरह से बर्ताव कर सकता है| अतः यह प्रबलतम अम्लीय नहीं होगा|
अधात्विक ऑक्साइड अम्लीय होते हैं $CO_2$ तथा $SO_2$ दोनों अम्लीय ऑक्साइड हैं परंतु

अतः सबसे प्रबलतम अम्लीय ऑक्साइड $SO_2$ है|

आशा है यह उत्तर आपकी सहायता करेगा|

और जानिये:

प्र. निम्न में से कौन सा सर्वाधिक अम्लीय यौगिक है?

यहाँ जानिये: brainly.in/question/16234667

Discussion

1874.	Mno2+4hcl=Mncl2 +2h2o+cl2 yogik kaa naam or upchyan apchyan
Answer» Answer: EXPLANATION: PLZ TRANSLATE THE QUESTION SO THAT MANY CAN ANSWER THIS QUESTION PLZZ DO THAT FIRST

1874.

Mno2+4hcl=Mncl2 +2h2o+cl2 yogik kaa naam or upchyan apchyan

Answer»

Answer:

EXPLANATION:

PLZ TRANSLATE THE QUESTION SO THAT MANY CAN ANSWER THIS QUESTION PLZZ DO THAT FIRST

Discussion

1875.	What are the constituent elements of Potassium permanganate
Answer» Answer: PLZ SUPPORT EMATE Explanation: Chemical COMPONENTS of the Formula Given the formula for potassium permanganate, KMnO4, its constituent elements are potassium (K), manganese (Mn), and OXYGEN (O). The formula indicates that there is 1 mole K, 1 mole Mn, and 4 moles O per mole of KMnO4.

1875.

What are the constituent elements of Potassium permanganate

Answer»

Answer:

PLZ SUPPORT EMATE

Explanation:

Chemical COMPONENTS of the Formula

Given the formula for potassium permanganate, KMnO4, its constituent elements are potassium (K), manganese (Mn), and OXYGEN (O). The formula indicates that there is 1 mole K, 1 mole Mn, and 4 moles O per mole of KMnO4.

Discussion

1876.	Elementmeaning examples etc
Answer» Answer: A chemical element refers to the PURE SUBSTANCE of one type of atom. ... For example, CARBON is an element comprised of atoms having the same number of protons, i.e. 6. Common EXAMPLES of elements are iron, copper, silver, gold, hydrogen, carbon, nitrogen, and oxygen. ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘs ᴜ ᴍᴀᴛᴇ

1876.

Elementmeaning examples etc

Answer»

Answer:

A chemical element refers to the PURE SUBSTANCE of one type of atom. ... For example, CARBON is an element comprised of atoms having the same number of protons, i.e. 6. Common EXAMPLES of elements are iron, copper, silver, gold, hydrogen, carbon, nitrogen, and oxygen.

ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘs ᴜ ᴍᴀᴛᴇ

Discussion

1877.	Solve it guys ...................
Answer» ANSWER: OPTION 4 is CORRECT ..........

1877.

Solve it guys ...................

Answer»

ANSWER:

OPTION 4 is CORRECT

..........

Discussion

1878.	3inheritance of traits. State the visible characters of Fjand F2 progenies.21. Explain giving reasons the bending of the shoot tip of a plant towards light source coming from ongside of the plant22. It is desired to obtain an erect image of an object, using concave mirror of focal length of 12 cm.(i) What should be the range of the object distance in the above case?(ii) Will the image be smaller or larger than the object? Draw a ray diagram to show the formation ofimage in this case.(iii) Where will the image of this object be, if it is placed 24 cm in front of the mirror?23. Suppose your parents have constructedom there
Answer» ANSWER: The RECESSIVE characters appear in the F2 generation. Law of SEGREGATION. Laws of Inheritance. Image source: wikipedia. This law STATES ...

1878.

3inheritance of traits. State the visible characters of Fjand F2 progenies.21. Explain giving reasons the bending of the shoot tip of a plant towards light source coming from ongside of the plant22. It is desired to obtain an erect image of an object, using concave mirror of focal length of 12 cm.(i) What should be the range of the object distance in the above case?(ii) Will the image be smaller or larger than the object? Draw a ray diagram to show the formation ofimage in this case.(iii) Where will the image of this object be, if it is placed 24 cm in front of the mirror?23. Suppose your parents have constructedom there

Answer»

ANSWER:

The RECESSIVE characters appear in the F2 generation. Law of SEGREGATION. Laws of Inheritance. Image source: wikipedia. This law STATES ...

Discussion

1879.	How to find ionic or co - valent compounds
Answer» ANSWER: Ionic COMPOUNDS is made from a METAL and a non metal and co-valent compound is made from only non METALS.

1879.

How to find ionic or co - valent compounds

Answer»

ANSWER:

Ionic COMPOUNDS is made from a METAL and a non metal

and co-valent compound is made from only non METALS.

Discussion

1880.	Hi guys plzz answer it fast
Answer» ANSWER: I THINK it is F ok olz NARK me as BRAINLIST

1880.

Hi guys plzz answer it fast

Answer»

ANSWER:

I THINK it is F ok

olz NARK me as BRAINLIST

Discussion

1881.	o no me ye kha ki thum boli na ki tum 1st class ho tho me write kya ki me 2 nd class hu ok so rupsa puchi ki kya 2nd bro tho me bola ki sindhu 2nd class ka matlab janti ha ki me 2nd class hu ok
Answer» I hope so you have understand...what I told you in RUPSA's question... you will think I an negative with you so...it's. true cuz you SAID bad about my Tavish. but don't behave again ...IM positive with you now.... reply me if any QUERY..or any other...

1881.

o no me ye kha ki thum boli na ki tum 1st class ho tho me write kya ki me 2 nd class hu ok so rupsa puchi ki kya 2nd bro tho me bola ki sindhu 2nd class ka matlab janti ha ki me 2nd class hu ok

Answer»

I hope so you have understand...what I told you in RUPSA's question...

you will think I an negative with you so...it's. true cuz you SAID bad about my Tavish.

but don't behave again ...IM positive with you now.... reply me if any QUERY..or any other...

Discussion

1882.	What happens when , hydrochloric acid is completely reacts with sodiumhydroxide solution , give word as well as symbolic reaction
Answer» Answer: Hydrochloric acid reacts with sodium hydroxide to FORM sodium chloride (the salt) and WATER. Sodium chloride is made up of Na+ cations from the base (NaOH) and Cl- anions from the acid (HCl). HCl+NaOH→H2O+NaCl. Hydrogen bromide reacts with POTASSIUM hydroxide to form potassium bromide (the salt) and water... Explanation: hope it helps you

1882.

What happens when , hydrochloric acid is completely reacts with sodiumhydroxide solution , give word as well as symbolic reaction

Answer»

Answer:

Hydrochloric acid reacts with sodium hydroxide to FORM sodium chloride (the salt) and WATER. Sodium chloride is made up of Na+ cations from the base (NaOH) and Cl- anions from the acid (HCl). HCl+NaOH→H2O+NaCl. Hydrogen bromide reacts with POTASSIUM hydroxide to form potassium bromide (the salt) and water...

Explanation:

hope it helps you

Discussion

1883.	Group number of elements with z=104
Answer» Answer: Rutherfordium Rutherfordium (RF), an artificially PRODUCED radioactive transuranium ELEMENT in Group IVb of the periodic table, atomic NUMBER 104.

1883.

Group number of elements with z=104

Answer»

Answer:

Rutherfordium

Rutherfordium (RF), an artificially PRODUCED radioactive transuranium ELEMENT in Group IVb of the periodic table, atomic NUMBER 104.

Discussion

1884.	Which of the alkali metal is having least melting point1 sodium2 potassium3 rubidium4 caesium
Answer» ANSWER: OPTION 4 Explanation: MELTING point decreases down the GROUP

1884.

Which of the alkali metal is having least melting point1 sodium2 potassium3 rubidium4 caesium

Answer»

ANSWER:

OPTION 4

Explanation:

MELTING point decreases down the GROUP

Discussion

1885.	Initial concentration ofthe reactant is 1.0M. The concentration becomes 0.9M, 0.8M and 0.7M in2 hours, 4hours and 6hours respectively, then the order of reaction is
Answer» Explanation: Here INITIAL concentration is 0.1M=A 1 Other time and CORRESPONDING concentration are given as Time Cocentration- t 1 =0H A 1 =1.0M t 2 =2HA 2 =0.9M

1885.

Initial concentration ofthe reactant is 1.0M. The concentration becomes 0.9M, 0.8M and 0.7M in2 hours, 4hours and 6hours respectively, then the order of reaction is

Answer»

Explanation:

Here INITIAL concentration is 0.1M=A 1

Other time and CORRESPONDING concentration are given as

Time Cocentration-

t 1 =0H A 1 =1.0M

t 2 =2HA 2 =0.9M

Discussion

1886.	write the observation when Dilute acid is added to a solution of metal carbonate or metal hydrogen carbonate.
Answer» Explanation: When dilute acid reacts with metal carbonate SALT,water and carbon dioxide are PRODUCED. HOPE this HELPS!! Please mark me as Brainliest!!!

1886.

write the observation when Dilute acid is added to a solution of metal carbonate or metal hydrogen carbonate.

Answer»

Explanation:

When dilute acid reacts with metal carbonate SALT,water and carbon dioxide are PRODUCED.

HOPE this HELPS!!

Please mark me as Brainliest!!!

Discussion

1887.	Write the observation Crystals of hydrated copper sulphate are heated.
Answer» ANSWER: PLZ,if it is correct plz rate ⭐me,like me and follow me and mark me as brainlist Explanation: The copper sulphate crystals CuSO4. 5H2O contain 5 water molecules which are known as water of crystallization. When we heat the crystals, these water molecules are removed and the salt TURNS WHITE. If we moisten the crystals again with water, the blue colour of the crystals reappear.

1887.

Write the observation Crystals of hydrated copper sulphate are heated.

Answer»

ANSWER:

PLZ,if it is correct plz rate ⭐me,like me and follow me and mark me as brainlist

Explanation:

The copper sulphate crystals CuSO4. 5H2O contain 5 water molecules which are known as water of crystallization. When we heat the crystals, these water molecules are removed and the salt TURNS WHITE. If we moisten the crystals again with water, the blue colour of the crystals reappear.

Discussion

1888.	6. The de Broglie wave length of Img grain of sand blown by a 20m s-1 wind is.
Answer» Answer: the de-broglie WAVELENGTH of 1 MG grain of SAND BLOWN by a 20m/s wind is- a) 3.3 *10^29. ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘs ᴜ ᴍᴀᴛᴇ ʙᴇ ʙʀᴀɪɴʟʏ

1888.

6. The de Broglie wave length of Img grain of sand blown by a 20m s-1 wind is.

Answer»

Answer:

the de-broglie WAVELENGTH of 1 MG grain of SAND BLOWN by a 20m/s wind is- a) 3.3 *10^29.

ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘs ᴜ ᴍᴀᴛᴇ

ʙᴇ ʙʀᴀɪɴʟʏ

Discussion

1889.	Mnemonic in English for spectrochemical series
Answer» Answer: too tough for me PLZ ASK question of mine level thank U

1889.

Mnemonic in English for spectrochemical series

Answer»

Answer:

too tough for me PLZ ASK question of mine level

thank U

Discussion

1890.	Solve it guys ................
Answer» ANSWER: OPTION 1 is my answer- 1120kg

1890.

Solve it guys ................

Answer»

ANSWER:

OPTION 1 is my answer- 1120kg

Discussion

1891.	3How will you create an artificial aquatic ecosystem, which is se9. Explain the processes of aerobic respiration in mitochondria of a cell and anaerobic respiration in yeastand muscle with the help of word equations.In a pea plant, the trait of flowers bearing purple colour (PP) is dominant over white colour (pp).Cand generations with the help of a cross following the rules of
Answer» EXPLANATION: PLEASE MARK me BRANLIST

1891.

3How will you create an artificial aquatic ecosystem, which is se9. Explain the processes of aerobic respiration in mitochondria of a cell and anaerobic respiration in yeastand muscle with the help of word equations.In a pea plant, the trait of flowers bearing purple colour (PP) is dominant over white colour (pp).Cand generations with the help of a cross following the rules of

Answer»

EXPLANATION:

PLEASE MARK me BRANLIST

Discussion

1892.	Sodium chloride is a neutral salt whereas sodium carbonate is basic. Explain on the basis of the acid and base that reacted to form these salts.
Answer» Answer: sodium carbonate (NA2CO3) 2Na^+ is CAME from sodium hydroxide (NaOH), a strong base and (CO3)²- is came from carbonic acid (H2CO3), a weak acid it is CLEAR that, Na2CO3 is formed by strong base and weak acid. so, Na2CO3 is BASIC in nature or it is a basic salt. Read more on Brainly.in - brainly.in/question/120394#readmore

1892.

Sodium chloride is a neutral salt whereas sodium carbonate is basic. Explain on the basis of the acid and base that reacted to form these salts.

Answer»

Answer:

sodium carbonate (NA2CO3)

2Na^+ is CAME from sodium hydroxide (NaOH), a strong base

and (CO3)²- is came from carbonic acid (H2CO3), a weak acid

it is CLEAR that, Na2CO3 is formed by strong base and weak acid. so, Na2CO3 is BASIC in nature or it is a basic salt.

Read more on Brainly.in - brainly.in/question/120394#readmore

Discussion

1893.	Write the observation when Active metal is added to dilute hydrochloric acid.
Answer» Answer: the metal STATS reacting with the acid it get combined with the negative ion and HENCE the HYDROGEN bubbles will come out of the solution . THANK you hope it helps ❤️

1893.

Write the observation when Active metal is added to dilute hydrochloric acid.

Answer»

Answer:

the metal STATS reacting with the acid it get combined with the negative ion and HENCE the HYDROGEN bubbles will come out of the solution .

THANK you hope it helps ❤️

Discussion

1894.	For class 8..... answer it quick guys
Answer» ANSWER: 1. HAND picking, Winnowing. 2. Evaporation. 3.distillation. 4. filtration.. 5. chromatography. 6.by using magnet. Explanation: *Hope* it *helps* *you. if you* *LIKE* *answer, please* *mark* as *BRILLIANT*.

1894.

For class 8..... answer it quick guys

Answer»

ANSWER:

1. HAND picking, Winnowing.

2. Evaporation.

3.distillation.

4. filtration..

5. chromatography.

6.by using magnet.

Explanation:

Hope it helps you.

if you LIKE answer, please mark as BRILLIANT.

Discussion

1895.	Write the step in deducing the chemical formulae of the following compounds- 1-Sodium sulphate 2-Potassium nitrate 3-ferric phosphate 4-calcium oxide 5-aluminium hydroxide-
Answer» ANSWER: kkkok Explanation: okkkkkkkokokokokokokookol

1895.

Write the step in deducing the chemical formulae of the following compounds- 1-Sodium sulphate 2-Potassium nitrate 3-ferric phosphate 4-calcium oxide 5-aluminium hydroxide-

Answer»

ANSWER:

kkkok

Explanation:

okkkkkkkokokokokokokookol

Discussion

1896.	What is sublime ..?
Answer» Answer: sublimer; sublimest. DEFINITION of sublime (Entry 2 of 2) 1a : lofty, grand, or exalted in thought, expression, or MANNER. b : of outstanding spiritual, intellectual, or moral worth. c : TENDING to INSPIRE awe usually because of elevated quality (as of beauty, nobility, or GRANDEUR) or transcendent excellence.

1896.

What is sublime ..?

Answer»

Answer:

sublimer; sublimest. DEFINITION of sublime (Entry 2 of 2) 1a : lofty, grand, or exalted in thought, expression, or MANNER. b : of outstanding spiritual, intellectual, or moral worth. c : TENDING to INSPIRE awe usually because of elevated quality (as of beauty, nobility, or GRANDEUR) or transcendent excellence.

Discussion

1897.	Find the answer plz
Answer» Answer: 4. (c) 5. (B) Explanation: Hope it HELPS you if so, PLEASE MARK as brainliest ...

1897.

Find the answer plz

Answer»

Answer:

4. (c)

5. (B)

Explanation:

Hope it HELPS you if so,

PLEASE MARK as brainliest ...

Discussion

1898.	When an acid reacts with metal carbonate or a metal carbonate or a metal hydrogen carbonate, it gives the corresponding salt, gas and one more product .name the gas and product name the gas and product. 1. carbon dioxide 2.hydrogen ,salt 3.carbon dioxide, salt 4.all of the above
Answer» ANSWER: Acids give carbon DIOXIDE GAS, respective salt and water when they react with METAL HYDROGEN carbonate. Acid + Metal hydrogen carbonate → Salt + Carbon dioxide + Water.

1898.

When an acid reacts with metal carbonate or a metal carbonate or a metal hydrogen carbonate, it gives the corresponding salt, gas and one more product .name the gas and product name the gas and product. 1. carbon dioxide 2.hydrogen ,salt 3.carbon dioxide, salt 4.all of the above

Answer»

ANSWER:

Acids give carbon DIOXIDE GAS, respective salt and water when they react with METAL HYDROGEN carbonate.

Acid + Metal hydrogen carbonate → Salt + Carbon dioxide + Water.

Discussion

1899.	Impurities in sulphuric 4 oxide production
Answer» SORRY BRO I have no ANSWER Sorry,,....,,,?,?

Discussion

1900.	How is sri chaitanya
Answer» LOOK above some INFORMATION about SRI chaiyanya thanks......

1900.

How is sri chaitanya

Answer»

LOOK above some INFORMATION about SRI chaiyanya

thanks......

Discussion

Explore topic-wise InterviewSolutions in .

Name /give examplesa. Petroleum productb. Cosmeticsc. Buliding materialsd. Explosives​

साधारणतया हैलोजनों का सामान्य इलेक्ट्रॉनिक विन्यास........होता है।​

Explain in detail about classification of solution on the basis of amount of solute

An element X belongs to 3rd period and 17 group state number of valence electrons in it ​

What happens when a base is exposed to air

How many moles are there in 28g of Nitride ion?

@ ANUSHA ❤✌

Three vectors satisfy the relation a.b=0 and a.c=0then how is a parallel to b×c

Jal ke jamne par uske anu ke bich ki duri badhti h ya ghahti h

3 nitro heptane structure.....answer with attachment plzzzzz​

Which one of the following will turn red litmus blue? *1 point

why do some bridges have weight limits that depend on how many wheels or axles the crossing vehicle has?

Can nonsoluble bases be ionized?

⟿An acid in a BASE SOLUTION will ionize; a base in an acid will ionize. LIKE solutions do not ionize. When pKa is less than pH, around 99 percent to 100 percent of the DRUG will ionize.

What is it's answer.

EmptedQ: 12Lanthanide contraction can explain ?ion ListN34AAtomic number of the series678101112BIonic radius of series4151681920С22324Density of the series527283132DNumber of extra nuclear electrons3536O39404344< Prev. QuestionNext Question >Finish the ExamMark for Review Clear Responsee S​

Write Chemical reaction of iron (fe),magnesium (mg) and calcium (ca) with hydrochloric acid (Hcl) and sulphuric acid (H2so4) . Plzz send me a only reaction means equation type anwer jse books me hota h and aaj raat me hi dena mera question ka answer plzzz!!!!

For n=4, Which one of the following value of I is not possible?

Cu crystallizes in fcc unit cell with edge length of 495pm. What is the radius of Cu atom ?​

what method would you use to obtain pure water from a mixture of water and ink? state with reasons , what happens to the colour of the mixture during the process. answer in detail plz with example . ans fast​

The units of viscosity is

@ ANUSHA ❤✌

D. ASSERTION a is false but REASON R is TRUE

Why phenol is less polar than ethenol? Give proper reason. ​

Phenols are more ACIDIC than phenols because delocalization of ELECTRONS takes place in phenols by resonance .

(iii)निम्न में से कौन-सा ऑक्साइड प्रबलतम अम्लीय है--(अ) H20(ब) Al203(स) CO2(द) SO2​

सबसे प्रबलतम अम्लीय ऑक्साइड है|

Mno2+4hcl=Mncl2 +2h2o+cl2 yogik kaa naam or upchyan apchyan

What are the constituent elements of Potassium permanganate

Elementmeaning examples etc

A chemical element refers to the PURE SUBSTANCE of one type of atom. ... For example, CARBON is an element comprised of atoms having the same number of protons, i.e. 6. Common EXAMPLES of elements are iron, copper, silver, gold, hydrogen, carbon, nitrogen, and oxygen.

Solve it guys ...................

How to find ionic or co - valent compounds​

Hi guys plzz answer it fast ​

o no me ye kha ki thum boli na ki tum 1st class ho tho me write kya ki me 2 nd class hu ok so rupsa puchi ki kya 2nd bro tho me bola ki sindhu 2nd class ka matlab janti ha ki me 2nd class hu ok​

What happens when , hydrochloric acid is completely reacts with sodiumhydroxide solution , give word as well as symbolic reaction​

Group number of elements with z=104​

Rutherfordium

Which of the alkali metal is having least melting point1 sodium2 potassium3 rubidium4 caesium

Initial concentration ofthe reactant is 1.0M. The concentration becomes 0.9M, 0.8M and 0.7M in2 hours, 4hours and 6hours respectively, then the order of reaction is​

write the observation when Dilute acid is added to a solution of metal carbonate or metal hydrogen carbonate.

Write the observation Crystals of hydrated copper sulphate are heated.

The copper sulphate crystals CuSO4. 5H2O contain 5 water molecules which are known as water of crystallization. When we heat the crystals, these water molecules are removed and the salt TURNS WHITE. If we moisten the crystals again with water, the blue colour of the crystals reappear.

6. The de Broglie wave length of Img grain of sand blown by a 20m s-1 wind is.​

the de-broglie WAVELENGTH of 1 MG grain of SAND BLOWN by a 20m/s wind is- a) 3.3 *10^29.

ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘs ᴜ ᴍᴀᴛᴇ

ʙᴇ ʙʀᴀɪɴʟʏ

Mnemonic in English for spectrochemical series

Solve it guys ................

Sodium chloride is a neutral salt whereas sodium carbonate is basic. Explain on the basis of the acid and base that reacted to form these salts.

Write the observation when Active metal is added to dilute hydrochloric acid.

For class 8..... answer it quick guys​

Hope it helps you.

Write the step in deducing the chemical formulae of the following compounds- 1-Sodium sulphate 2-Potassium nitrate 3-ferric phosphate 4-calcium oxide 5-aluminium hydroxide-

What is sublime ..?​

Find the answer plz​

When an acid reacts with metal carbonate or a metal carbonate or a metal hydrogen carbonate, it gives the corresponding salt, gas and one more product .name the gas and product name the gas and product. 1. carbon dioxide 2.hydrogen ,salt 3.carbon dioxide, salt 4.all of the above​

Impurities in sulphuric 4 oxide production

How is sri chaitanya

Name /give examplesa. Petroleum productb. Cosmeticsc. Buliding materialsd. Explosives

साधारणतया हैलोजनों का सामान्य इलेक्ट्रॉनिक विन्यास........होता है।

An element X belongs to 3rd period and 17 group state number of valence electrons in it

3 nitro heptane structure.....answer with attachment plzzzzz

EmptedQ: 12Lanthanide contraction can explain ?ion ListN34AAtomic number of the series678101112BIonic radius of series4151681920С22324Density of the series527283132DNumber of extra nuclear electrons3536O39404344< Prev. QuestionNext Question >Finish the ExamMark for Review Clear Responsee S

Cu crystallizes in fcc unit cell with edge length of 495pm. What is the radius of Cu atom ?

what method would you use to obtain pure water from a mixture of water and ink? state with reasons , what happens to the colour of the mixture during the process. answer in detail plz with example . ans fast

Why phenol is less polar than ethenol? Give proper reason.

(iii)निम्न में से कौन-सा ऑक्साइड प्रबलतम अम्लीय है--(अ) H20(ब) Al203(स) CO2(द) SO2

सबसे प्रबलतम अम्लीय ऑक्साइड $SO_2$ है|

How to find ionic or co - valent compounds

Hi guys plzz answer it fast

o no me ye kha ki thum boli na ki tum 1st class ho tho me write kya ki me 2 nd class hu ok so rupsa puchi ki kya 2nd bro tho me bola ki sindhu 2nd class ka matlab janti ha ki me 2nd class hu ok

What happens when , hydrochloric acid is completely reacts with sodiumhydroxide solution , give word as well as symbolic reaction

Group number of elements with z=104

Initial concentration ofthe reactant is 1.0M. The concentration becomes 0.9M, 0.8M and 0.7M in2 hours, 4hours and 6hours respectively, then the order of reaction is

6. The de Broglie wave length of Img grain of sand blown by a 20m s-1 wind is.

For class 8..... answer it quick guys

What is sublime ..?

Find the answer plz

When an acid reacts with metal carbonate or a metal carbonate or a metal hydrogen carbonate, it gives the corresponding salt, gas and one more product .name the gas and product name the gas and product. 1. carbon dioxide 2.hydrogen ,salt 3.carbon dioxide, salt 4.all of the above