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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 47351. |
De-Broglie wavelength is given by |
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Answer» h/mvExplanation: |
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| 47352. |
Precautions to be taken when carrying out experiments using hydrogen |
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Answer» The PREVENTION are -Explanation:NEVER smoke NEAR a place where hydrogen is generated or being used. Remove all possible sources of flame and sparks. Hydrogen should only be generated and used in a well ventilated out DOOR area. PRECAUTIONS must be taken to remove all possibilities of fire or explosion. |
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| 47353. |
Draw the structure of s, cl,ar,ca and mg(atomic number 16,17,18,6 and 12 |
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| 47354. |
Pls give answer if you know this okay guys |
| Answer» C) is WRONG because SYMBOL of ALUMINIUM is AlExplanation: | |
| 47355. |
The radius of a cation is lesser than atom while that of anion is greater than the atom.Explain?? |
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Answer» The RADIUS of a cation is lesser than atom while that of anion is greater than the atom because -1. they have lesser ELECTRONS2. Anions are formed by the gain of electrons3. When we consider EFFECTIVE nuclear CHARGE then, the ions of greater nuclear charge attract those ten electrons more STRONGLY and pull them in more tightly. Therefore, the radii of the ions in an isoelectronic series decrease as nuclear chargehope it helps u...follow me !!! |
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| 47356. |
based on the group of valency of elements state the formula for the following ,giving justification of each -1)oxides of first group elements. 2)compounds formed when an element of groups 2 combines with an element of group 16. |
| Answer» E YOUR DISPLAY LIGHT A LITTLE.....I think you will GET your answer from this picture.....HOPE THIS DOESN'T HELP YOU | |
| 47357. |
14. A and B react with Na gives H2 gas and by reaction of both A and B ethyl acetate is formed then A and B are; A) CH3COOH, C2H5OH B) C3H7COOH, C3H7OH C) CH3COOH, CH3OH D) HCOOH, CH3COOH |
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Answer» option AExplanation:Ethyl ACETATE is an ester, so A any B must be alcohol and carboxylic acid. For the FORMATION of ethyl acetate, we need alcohol with 2 carbons and carboxylic acid with 2 carbons.Both have acidic HYDROGENS so they reacts with Na to FORM hydrogen gas. |
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| 47358. |
Explain triple covalent bond |
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Answer» tion:A triple bond in CHEMISTRY is a CHEMICAL bond between two atoms involving SIX bonding electrons instead of the usual two in a covalent single bond. ... The most common triple bond, that between two carbon atoms, can be found in alkynes. |
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| 47359. |
Is can accessary gland 1 |
| Answer» PLESE check your question I think it is not PROPERLY WRITTEN | |
| 47360. |
Element A andB form 2 compoundCompound 1: 32 parts of A combine with 84 part of BCompound 2: 16 parts of A combine with x parts of BGiven ratio of different masses of B combine with same mass of A is 3:5 find x |
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Answer» don't KNOW....EXPLANATION:please follow me and mark me as BRAINLIEST |
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| 47361. |
AgCl will be least soluble in a) 0.1M Ag Br b) 0.1M HClc) 0.05 M AgNO3d) 0.5 M NaCl |
| Answer» C is the ANSWER OK BRO the LINK is here | |
| 47362. |
I can't give reply to your personal message |
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Answer» n or department that can be APPROACHED for INFORMATION or assistance on a SPECIFIC topic is known as POINT of contact. |
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| 47363. |
2. A galvanic cell is represented as - Zn | Zn* (a=1) || Cd²+ (a=1)| CdThe overall cell reaction of it is given by(a) Cd(s) + Zn2+ (a=1) → Cd + (a=!) + Zn(s)(b) Zn(s) + Cd²+ (a=1) → Zn** (a=1) + Cd(s)(c) Zn(s) → Zn2+ (a=1) + 2e- oxien(d) Cd + (a=1) + 2e + Cdis) redu |
| Answer» C EXPLANATION:please FOLLOW me and MARK me brainlist please please please please please please please please | |
| 47365. |
Explain Redox reaction |
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Answer» A redox (or OXIDATION-reduction) reaction is a TYPE of CHEMICAL reaction that involves a transfer of electrons between two SPECIES. What is a "species"? We can tell there has been a transfer of electrons if there is any CHANGE in the oxidation number between the reactants and the products. |
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| 47366. |
Thread rolling is restricted to |
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Answer» Your answerExplanation:Materials are limited to DUCTILE materials because the threads are cold formed. . Also, materials with GOOD deformation characteristics are necessary for rolling; these materials INCLUDE softer (more ductile) metals and exclude BRITTLE materials, such as cast iron. |
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| 47367. |
56. Wavelength is expressed in .....1) Angstroms2) Nanometers 3) Picometers 4) All57.Who disocvered the presence of nucleus in the atom ?1) Rutherford2) J.J. Thomson 3) Goldstein4) Chadwick58.The product of which of the following is equal to the velocity of light ?1) Wave length and wave number2) Wave length and frequency3) Frequency and wave number4) Wave length and amplitude59.The nature of black body is1) Perfect absorber2) Perfect emitter3) both (1) & (2)4) none of the above60.The units of frequency is1) A02) Hz59.60.3) cm4) pm |
| Answer» WAVELENGTH is expressed in ANGSTROMS. Nucleus is discovered by Chadwick. 58) 259) 160) 2 | |
| 47368. |
Which gas will be adsorbed on a solid to a greater a) a gas as having non polar moleculesb) a gas as having higher critical temperaturec) a gas having lowest critical temperatured) a gas having higher critical pressure |
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Answer» The answer is B a gas as having higher critical TEMPERATURE |
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| 47369. |
Explain electron dot symbol |
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Answer» tion:Electron DOT Structures - Helpful TOOLS in THINKING about bonding. ... Electron dot structure - valence electrons are represented by dots placed around the chemical SYMBOL. Electrons are placed up to two on each side of the elemental symbol for a maximum of EIGHT, which is the number of electrons in a filled s and p shell. |
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| 47370. |
Wavelength of y rays are in range of |
| Answer» LIGHT has a wavelength RANGE from ~400 nm to ~700 nm....MARK it as BRAINLIEST ✌️☃️☃️☃️☃️☃️☃️☃️☃️ | |
| 47371. |
In the following questions (42-43) a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices. (a) Assertion and reason both are correct statements and reason is correct explanationfor assertion(b)Assertion and reason both are correct statements but reason is not correctexplanation for assertion(c) Assertion is correct statement but reason is wrong statement(d) Assertion is wrong statement but reason is correct 42. Assertion : Sodium bicarbonate is used in antacid medicinesReason: It is a mild base which neutralizes the acidity of gastric juice.43. Assertion: Bleaching powder has a strong smell of chlorine.Reason: Bleaching powder is a white powder and an oxidizing agent. |
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Answer» ʌʌʌʌʌʌʌʌ ʌʌʌʌʌʌʌ ʌʌ ʌʌʌʌʌʌʌʌʌExplanation:nɥɥddssɟƃɾɥɥʌʌsɥɥ qqqɥ |
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| 47372. |
Solubility of salt ab2 in pure water is x M. solubility product K(sp) of salt is a) x^2b) 2x^2c) 3x^3d) 4x^3 |
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Answer» The SOLUBILITY in water of a sparingly SOLUBLE SALT ab2 isThe solubility in water of a sparingly soluble salt AB2 is 1.0 × 10^-5mol L^-1 . |
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| 47373. |
Ano ang english ng mahal kita |
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Answer» nderstand your QUESTION....... |
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| 47374. |
11. As methyl group (-CH3) is electron (e-) donating, ethanoic acid (CH3COOH) is A) Weakest carboxylate ion B) Stronger acid than formic acid C) Weaker acid than formic acid D) Strongest acid than all organic acids |
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Answer» weaker ACID than FORMIC acid (c)Explanation:HOPE THIS HELPS YOUMARK IT BRAINLIEST |
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| 47375. |
Green Chemistry is also called as..... |
| Answer» TION:SUSTAINABLE chemistryhope it HELPS | |
| 47376. |
At 127°C temperature volume of gas is 3L .If volume of gas becomes half then calculate temperature.Pressure is 1 bar. |
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Answer» TION:A gas ATIN a CYLINDER has a volume of 4 LITRE and pressure. (i) Gas is first compressed at constant temperature so that the pressure is. Calaulate the change in volume. (ii) It is then heated at constant volume so that temperature become |
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| 47377. |
Which compound is this?? Answer fast... |
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Answer» BenzeneExplanation: |
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| 47378. |
PH of 10^-2M NaOH solution is. a)2b)12c)8d)6 |
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Answer» the answer for this question is 12 EXPLANATION:pH OFM NAOH solution = 12. |
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| 47379. |
I am going to typing |
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Answer» okkkkkkkkkkkkkkkkkkkkk |
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| 47380. |
5. The reduction potential of SCE at 25°C is 0.2415 volts, it indicates (a) Hg2C12(5) + 2e → 2Hgc + 2 CIS(Sat)(b) 2Hgo + 2 C1 (sat) -→ Hg2 C129) + 2e(c) HgCl2 + 2e → Hgo + 2C1(d) Hg+ + 2e → Hgo)(Sat) |
| Answer» C EXPLANATION:i HOPE my ANSWER HELP to you | |
| 47381. |
The atomic number of an element is equal to which of the following ? 1 point 1) the number of neutrons in the nucleus 2) the number of protons in nucleus 3) the number of electrons in the nucleus 4) the number of electrons outside of the nucleus in any species |
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| 47382. |
Define the term of alkalis? |
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Answer» An ALKALI DEFINED as a base that dissolves in WATER. A SOLUTION of a soluble base has a pH greater than 7.0 |
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| 47383. |
Answer the attachment........ Don't spam |
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Answer» hat: A = 56Iron nuclei MASS = 55.85 UANSWER:Formula to be used:and = Step by step EXPLANATION:-Radius ( by Rutherford) is GIVEN as :So, mass of iron nucleus= so, nuclear density = |
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| 47384. |
(48) અંતરિક્ષ અવલોકનોમાં દૂરના તારામાંથી અવલોકિત થતાં સિનલ સામાન્ય રીતે નબળાં હોય છે. જો ફોટોન સંસૂચક 600 pmકિરણમાંથી 3.15 x 10-15 પ્રાપ્ત કરે છે, તો સંસૂચક વડેસ્વીકારાયેલા ફોટોનની સંખ્યા ગણો. |
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Answer» gfhvdddExplanation:vbhsyjcfhhfujghgd |
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| 47385. |
Write formula of 24 compounds formed using “Ca2+” as cation with each of the 24 negative radicals. Please write the names of the compound. |
| Answer» SORRY I can't UNDERSTAND | |
| 47386. |
What is gold........? |
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Answer» hello dear...Explanation:Gold is a chemical element with the symbol Au and atomic number 79, making it one of the higher atomic number ELEMENTS that occur naturally. In a pure form, it is a bright, slightly reddish yellow, dense, soft, MALLEABLE, and ductile metal. CHEMICALLY, gold is a transition metal and a group 11 element...it's ur Answer...follow me PLEASE ☺️☺️ |
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| 47388. |
3 degree alkyl halide is less reactive for sn2 rxn |
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Answer» the answer is GIVEN belowExplanation:In general, the order of reactivity of alkyl halides in SN2 reactions is: methyl > 1° > 2°. The 3° alkyl halides are so crowded that they do not generally REACT by an SN2 mechanism. |
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| 47389. |
What are limitation of chemical equation and how they can be overcome |
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Answer» A chemical equation has its own limitations. They do not provide information about: The physical state of REACTANTS and products Hence, the SYMBOLS 's' for SOLID, 'l' for liquid, 'G' for gas and 'vap' for vapour are added. CONDITIONS such as temperature, pressure and catalyst affecting the reaction.Explanation: plz mark me as brainlist |
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| 47390. |
Sodium carbonate is used to distinguish? |
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Answer» carbonate is well known for its USE in inorganic analysis, as it reacts with certain metals to GIVE carbonate salts of well defined colour. ... One important chemical TEST to differentiate carbonate and BICARBONATE is MGSO4 test. |
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| 47391. |
Difine bond energy |
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Answer» istry, bond energy, also CALLED the mean bond enthalpy or average bond enthalpy is the MEASURE of bond strength in a chemical bond. IUPAC DEFINES bond energy as the average value of the gas-phase bond-dissociation energy for all bonds of the same type within the same chemical species. |
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| 47392. |
Consider the following strength of concrete: Cube strengthCylinder strengthSplit-tensile strengthModulus of rupturee correct sequence in increasing order of these strength2560702956 |
| Answer» TION:hejejehdvr ehwywhs+--6+-- | |
| 47393. |
Obtain the relationship between delta G⁰ reaction and equilibrium constant |
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Answer» Ffygfhseyyaasf 37t84and 2IS was 3124inches 8e8t9465w7s7r8t9t9t7r7d6a6e88r6a is the FIRST of its THREE MILLION USERS |
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| 47394. |
Which of the given statement is correct? f-orbitals are more penetrated towards the nucleus than s-orbitals In general, increasing nuclear charge outweighs shielding across a period In general, increasing nuclear charge outweighs shielding down the group In general, increasing nuclear charge is out weighted by shielding across a period |
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Answer» 3,3 are CORRECTEXPLANATION:PLEASE FOLLOW me |
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| 47395. |
N+l = 10 , find no of orbitals |
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Answer» i CANT UNDERSTAND your QUESTION can you REPEAT?EXPLANATION: |
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| 47396. |
1.Gases are not rigid andget. ___ easily 2.Souring of nilk is a(an)change. 3.Elernentscanınotbe down further.4.The ratio of hydrogen and oxygen in water is_. 5.A change usually cannot be reversed. _easily. fill in the blanks |
| Answer» PATA nahif7fuftsygixt8fus6x | |
| 47398. |
The third line in Balmer series corresponds to an electronic transfer between which Bohr's orbit in hydrogen A.5to3 B.5to2 C.4to3 D.4to2 |
| Answer» SINCE, the inner orbit is 2 and from the given question we get to KNOW that transition is REQUIRED for the third line of BALMER series hence the outer orbit must be n2=2+3 = 5. Thus, the transition must be from 2 to 5. | |
| 47399. |
Pb(NO)3----2PbO +4NO2+O2 The characteristics observed in the following chemical reaction are * |
| Answer» SITION REACTION OK | |
| 47400. |
I. State the type of reactions in the following. 1.PbO + 2HNO3→ Pb(NO3) + 2H2O2.KNO3 + H2SO4 → HNO3 + KHSO4 |
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Answer» alisation REACTION 2.Double DISPLACEMENT reaction |
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