Hydrogen (NEET Chemistry): Questions 28 - 34 of 50

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Question number: 28

» Hydrogen » Physical and Chemical Properties of Heavy Water

MCQ▾

Question

Which of the following order is correct regarding latent heat of fusion of H2O and D2O?

Choices

Choice (4) Response

a.

H 2 O=D 2 O

b.

H 2 O>D 2 O

c.

H 2 O<D 2 O

d.

H 2 OD 2 O

Question number: 29

» Hydrogen » Isotopes

MCQ▾

Question

Which of the following isotope of hydrogen has lowest density?

Choices

Choice (4) Response

a.

Protium

b.

Tritium

c.

Deuterium

d.

None of the above

Question number: 30

» Hydrogen » Structure, Preparation, Reactions and Uses of Hydrogen Peroxide

MCQ▾

Question

Decolonization of acidified potassium permanganate occurs when hydrogen peroxide is added to it. This is due to?

Choices

Choice (4) Response

a.

reduction of KMnO4

b.

oxidation of KMnO4

c.

oxidation and reduction of KMnO4

d.

All of the above

Question number: 31

» Hydrogen » Preparation, Properties and Uses of Hydrogen

MCQ▾

Question

In which of the following reactions does hydrogen acts as an oxidizing agent?

Choices

Choice (4) Response

a.

H2+F2

b.

H2+SiCl4

c.

Na+H2

d.

H2+CuO

Question number: 32

» Hydrogen » Physical and Chemical Properties of Water

MCQ▾

Question

Heavy water is used in atomic reactor as?

Choices

Choice (4) Response

a.

Neither coolant nor moderator

b.

Coolant

c.

Moderator

d.

Moderator and coolant

Question number: 33

» Hydrogen » Physical and Chemical Properties of Water

MCQ▾

Question

Calgon is an industrial name given to?

Choices

Choice (4) Response

a.

Sodium meta- aluminate

b.

Hydrated sodium aluminium silicate

c.

Sodium phosphate

d.

Sodium hexameta phosphate

Question number: 34

» Hydrogen » Structure, Preparation, Reactions and Uses of Hydrogen Peroxide

MCQ▾

Question

A substance liberates oxygen on heating and turns an acidic solution of KI brown and reduces acidified KMnO4 solution. The substance is?

Choices

Choice (4) Response

a.

H2O2

b.

CuO

c.

HgO

d.

KNO3

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