Explore topic-wise InterviewSolutions in .

Answer:

It state that the solubility of a gas I a liquid is DIRECTLY proportional to the PRESSURE of the gas

Its colligative properties are

1 vapour pressure lowering

2 OSMOTIC pressure

3 freezing point depression

4. Boling point elevation

Gave a thanks

Answer:

Here are the steps to convert ethyl alcohol to phenol.

Dehydrate it . ...

Brominate using Br2.

PERFORM E2 reaction again by alcoholic KOH FOLLOWED by NaNH2. ...

Then dip the product in red hot IRON tube at 573 k. ...

Perform nitration of benzene ring using HNO3/H2SO4.

Add stannum in acidic medium to reduce -NO2 GROUP to -NH2.

ANSWER:

what do you MEAN by pholellum

Explanation:

The report has declared the cost of railway department expensive because of the use of iron.

Iron is USED everywhere in railway department from construction of trains to the track. Iron is used in every single step.

At some PLACES Iron is used as it is and also used as an alloy e.g. STEEL to avoid rusting.

The FACT that due to iron use cost has increased is that most of the time iron can not be used alone rather it is used in an alloy form to withstand the load of heavy trains. Thus, alloys are relatively expensive.

Here are the steps to convert ethyl ALCOHOL to phenol.

❥Dehydrate it . ...

❥Brominate using Br2.

❥Perform E2 reaction again by alcoholic KOH followed by NaNH2. ...

❥Then dip the product in red hot iron tube at 573 K. ...

❥Perform nitration of benzene ring using HNO3/H2SO4.

❥Add STANNUM in acidic medium to REDUCE -NO2 group to -NH2.♥️

MG that is MAGNESIUM ♥️

Answer:

BH3 is the answer

Explanation:

TAKE RATIO of B:H

Answer:

Ch3-ch2-ch3 = propane.

only one ch2 UNIT is present.

CHEMICAL FORMULA = C3H8

HOPE it helps you......

➤ State THREE applications of DECOMPOSITION reactions. Two USES of chemical decomposition reaction in chemical industry are given below : (1) Manufacture of cement . (2) To extract metals from its oxides , CHLORIDES etc If we look then we will find that there are many uses of decomposition reaction in chemical industry .

❒______________________

because of HIGH POWER we SAY that it is more STABLE

Explanation:

In a HOT air balloon due to the heating the air becomes lighter and start to GO in upward direction .These helps the balloon to float in the air .density MEANS the weight and as air is heated it becomes lighter means it it's density decreases.

Thank you,☺️

MARK AS BRAINLIEST.

ANSWER:

OKKK ,

Oxidant. Reductant

1) CuO. H2

2)PbO. C

3) MNO2. 4HCl

oxidant also known as oxidising agent which REDUCES itself to oxidised other and reductant is vice versa of it !

Answer:

Combustion of hydrocarbon is given by CHEMICAL equation ..

equation is in the above image

here, it is clear that,

1vol of hydrocarbon reacts with (x + y/4) vol of O2 to FORM x vol of carbon dioxide.

so, 15ml hydrocarbon reacts with 15(x + y/4) ml of oxygen to form 15x ml of carbon dioxide.

VOLUME of O2 = 20% of 375ml

= 20 × 375/100 = 75 ml

so, 15(x + y/4) = 75

x + y/4 = 5 .....(1)

a/c to question, final volume of gases = 330ml

initial volume of gases = 375ml + 15ml = 390ml

amount of water formed = 390ml - 330ml = 60ml

so, 15 × y/2 = 60 => y = 8

put it in equation (1), x = 3

so, hydrocarbon is

C3 H8

ANSWER:

Iron is the second most abundant METAL available on earth. A forms MAGNETIC oxide B, Fe₃O₄ when steam is passed over A in red HOT condition.

Explanation:

ANSWER:

USING the FORMULA -13.6/ N2 EV

-13.6/2^2 = -13.6/4

= -3.4 eV.

EXPLANATION:

Answer:Malleable: A substance which can be beaten to convert into sheets are said to be malleable. Generally all metals are malleable. For example copper, IRON etc.

Ductile: A substance which can be drawn into WIRES are said to be ductile. Generally all metals are ductile. For example SILVER, GOLD etc.

ANSWER:

in the CHAPTER MATTER in our surroundings it DEFINE the state of matter and their PROPERTIES .

ANSWER:

Explanation:

FIRSTLY its van't HOFF factor(i)

ΔT=iK(f)m

i=ΔT/K(f)m

i=2.93/(1.86*0.561)

i=2.8

BAKING powder is composed of sodium HYDROGEN carbonate as well as weak acids. Sodium hydrogen carbonate REACTS with the weak ACID, RELEASING the carbon dioxide that makes batter and dough rise.

Answer:

alloy is the MIXTURE of TWO or more metal ARTICLE......

hope it HELP....

ANSWER:

no

not all ELEMENTS have ISOTOPES

follow

mark as BRAINLIEST I NEED it

Answer:

SOIL EROSION is the removal of upper LAYER of soil.

ANSWER:

TEST tube stand, test tube and the GIVEN ACID.

ANSWER:

this the BOND and the strecture of the borazine

thanks

The former effect causes a decrease in the SHEAR stress while the latter causes it to increase. The result is that liquids show a reduction in VISCOSITY with increasing temperature. With HIGH temperatures, viscosity INCREASES in gases and decreases in liquids, the drag force will do the same.

Answer:

OPTION (4) is CORRECT.

(4) 16.53 eV

EXPLANATION :

REFER the attached picture.

Formula used :

E = - 13.6 × z^2 / n^2

Answer:

HOPE this will HELP you

Explanation:

PLS mark as BRAINLIEST

#What Is the

Markovnikov’s Rule

The Markovnikov’s rule predicts the outcome of addition reaction carried out on addition of protic acid HX to an asymmetric alkene, also called HYDROHALOGENATION (under standard conditions). It was formulated by Vladimr Markovnikov in 1865 

#EXPLANATION of

Markovnikov’s Rule Mechanism

with a Simple Example

When a protic acid HX (X = Cl, Br, I) is added to an asymmetrically substituted alkene, addition of acidic hydrogen takes place at the less substituted carbon atom of the double bond, while halide X is added to the more alkyl substituted carbon atom. In other words, hydrogen is added to the carbon atom with more number of hydrogen atoms attached to it and halide is added to the carbon atom with least number of hydrogen atoms 

#Markovnikov’s Rule Mechanism

The driving force behind the reaction is the formation of carbocation on addition of H to the alkene, in the first step of the reaction [3]. The most STABLE carbocation is formed when H is added to carbon having more number of hydrogen atoms already attached – due to factors LIKE induction and hyperconjugation – which gives the major product with Br added to less hydrogen-rich carbon 

YOUR ANSWER IS IN THE ATTACHMENT PLZZ REFER TO THE ATTACHMENT

MARK ME BRAINLIEST ✌✌✌

Answer:

Acid rain can CAUSE the SKIN BURN too.

Answer:

Combustion is the complete oxidation of organic compound into carbon dioxide and water molecules in the presence of oxygen gas WHEREAS oxidation is the addition of oxygen in a compound or addition with an element. It is ALSO defined as a reaction in which there is loss of an ELECTRON from an atom or ion. Combustion reactions INVOLVE heat and light whereas oxidation reaction does not involve heat. All combustion reactions are oxidizing since they absorb Oxygen for the reaction to take place but all oxidation reactions are not combustion reactions

Hope It Would Be Helpful!!!

Plzz MARK as "Brainliest"

THANK YOU!!!

ANSWER:

it's hardness

Explanation:

HOPE this answer HELPS U!!

Explanation:

EXAMPLE of a Zero-Order Reaction

The HABER processThe Haber PROCESS produces ammonia from hydrogen and nitrogen GAS. The reverse of this process (the decomposition of ammonia to FORM nitrogen and hydrogen) is a zero-order reaction. “zero-order reaction.” “Rate law.”

Answer:

becoz hydrogen chloride produces H+ ions onky in the presence of water and not in the ABSENCE of water. as the ions (charged particles) are produced they are responsibke for the ELECTRICAL conductivity. since hydrogen chloride is an acid it turns blue LITMUS to RED

MARK AS BRAINLIEST ❤

To CALCULATE the average mass, first convert the PERCENTAGES into FRACTIONS (divide them by 100). Then, calculate the mass numbers. The chlorine ISOTOPE with 18 neutrons has an abundance of 0.7577 and a mass number of 35 amu.

Answer:

25/100 = 25%

Explanation:

the the SUGAR in the water percentage is 25 percentage

mark me as BRAINLEST please mark me as brainlest please mark me as brainlest

Answer:

The physical and chemical properties of the elements are periodic function if their ATOMIC numbers.

Then the key factors for the DESIGNING of periodic table are,

   ⇒Periodicity in physical and chemical properties

   ⇒Atomic number

Hope It would Be HELPFUL!!

Plz MARK As "Brainliest"

THANK YOU!!!!

Answer:

ZNO +H2 -----> H20 +Zn

we will get AL, and Zn like amphoteric metals.

ANSWER:

Nendra MODI.....is the PRIME MINISTER of INDIA

YOUR ANSWER IS IN THE ATTACHMENT PLZZ REFER TO THE ATTACHMENT

MARK ME BRAINLIEST ✌✌✌

Answer:

1s^1

Explanation:

it have only ONE ELECTRON which is PRESENT in 1st SHELL and s SUB shell

ANSWER:

USE IDEAL GAS EQ i.e PV=nRT

Explanation:

n=PV/RT

T=283K

ANSWER:

GIRLS DONT LIKE cricket

Explanation:

ANSWER:SLOW - RUSTING of iron

Fast - LIGHTING up of MATCH stick

Explanation:

ANSWER:

HOPE it HELPFUL for U.........

Answer:

The process in which an electron is given enough energy to break away from an atom is called ionisation. This process results in the formation of two charged particles or ions: the molecule with a net positive charge, and the free electron with a negative charge.

The process in which an electron is given enough energy to break away from an atom is called ionisation. This process results in the formation of two charged particles or ions: the molecule with a net positive charge, and the free electron with a negative charge.Ionising radiation is the energy produced from natural or artificial sources. It has more energy than non-ionising radiation, enough to cause chemical changes by breaking chemical bonds. This effect can cause damage to living tissue.

The process in which an electron is given enough energy to break away from an atom is called ionisation. This process results in the formation of two charged particles or ions: the molecule with a net positive charge, and the free electron with a negative charge.Ionising radiation is the energy produced from natural or artificial sources. It has more energy than non-ionising radiation, enough to cause chemical changes by breaking chemical bonds. This effect can cause damage to living tissue.X-ray and gamma ray radiation, which are at the upper end of electromagnetic spectrum, have very high frequencies (in the RANGE of 100 billion billion hertz) and very short wavelengths (1 million millionth of a METRE). Radiation in this range has high energy. It has enough energy to strip electrons from an atom or, in the case of very high-energy radiation, break up the nucleus of the atom.

The process in which an electron is given enough energy to break away from an atom is called ionisation. This process results in the formation of two charged particles or ions: the molecule with a net positive charge, and the free electron with a negative charge.Ionising radiation is the energy produced from natural or artificial sources. It has more energy than non-ionising radiation, enough to cause chemical changes by breaking chemical bonds. This effect can cause damage to living tissue.X-ray and gamma ray radiation, which are at the upper end of electromagnetic spectrum, have very high frequencies (in the range of 100 billion billion hertz) and very short wavelengths (1 million millionth of a metre). Radiation in this range has high energy. It has enough energy to strip electrons from an atom or, in the case of very high-energy radiation, break up the nucleus of the atom.Each ionisation releases energy that is absorbed by MATERIAL surrounding the ionised atom. Ionising radiation deposits a LARGE amount of energy into a small area. In fact, the energy from one ionisation is more than enough energy to disrupt the chemical BOND between two carbon atoms.

Answer:

it is highly exo THERMIC

PRODUCTS formed CALCIUM hydrooxide and water

ANSWER:

1. by COMBUSTION REACTION

EXPLANATION:

C. H it changes into CH

Answer:

Potassium permanganate(KMnO4) is COLORED because it absorbs light in the visible RANGE of the electromagnetic spectrum. ... This CHARGE transfer takes place when a PHOTON of light is absorbed, which leads to the purple COLOR of the compound.

hope it will help you.........