KVPY (Kishore Vaigyanik Protsahan Yojana) Stream SB-SX (Class 12 & 1st Year B.Sc.) Chemistry: Questions 20 - 24 of 269

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Question number: 20

» P-Block Elements Group 13 to 18 » Group 13 » Boron

Appeared in Year: 2013

MCQ▾

Question

Hydrolysis of gives X which on treatment with sodium carbonate produced Y. X and Y respectively are

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 21

» States of Matter » Solid State » Imperfection in Solids

Appeared in Year: 2015

MCQ▾

Question

Schottky defect in a crystal arises due to

Choices

Choice (4) Response

a.

Migration of cations to interstitial voids

b.

Migration of anions interstitial voids

c.

Creation of equal number of cation & anion vacancies

d.

Creation of unequal number of cation & anion vacancies

Question number: 22

» Redox Reactions & Electrochemistry » Balancing of Redox Reactions

Appeared in Year: 2014

MCQ▾

Question

The number of moles of required oxidase one equivalent of KI in the presence sulfuric acid is:

Choices

Choice (4) Response

a.

b.

2

c.

d.

5

Question number: 23

» Chemical Kinetics » Arrhenius Theory

Appeared in Year: 2015

MCQ▾

Question

The rate constant of a chemical reaction at a very high temperature will approach-

Choices

Choice (4) Response

a.

Activation energy divided by the ideal gap constant.

b.

Activation energy

c.

Arrhenius Frequency factor

d.

Arrhenius frequency factor divided by the ideal gap constant

Question number: 24

» Chemical Thermodynamics » First Law of Thermodynamics » Heat Internal Energy

Appeared in Year: 2013

MCQ▾

Question

For the isothermal reversible explanation of an ideal gap:

Choices

Choice (4) Response

a.

b.

c.

d.

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