Hydrogen (NEET Chemistry): Questions 35 - 40 of 50

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Question number: 35

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

MCQ▾

Question

When 50 % solution of H2SO4 is electrolyzed by passing a current of high density at low temperature the main products of electrolysis are?

Choices

Choice (4) Response
a.

Hydrogen and peroxy disulphuric acid

b.

H2 and SO2

c.

O2 and peroxy disulphuric acid

d.

Oxygen and Hydrogen

Question number: 36

» Hydrogen » Physical and Chemical Properties of Water

MCQ▾

Question

What is the degree of hardness f sample of water containing 24 mg of MgSO4 (molecular mass 120) per kg of water?

Choices

Choice (4) Response
a.

20 ppm

b.

10 ppm

c.

25 ppm

d.

15 ppm

Question number: 37

» Hydrogen » Preparation, Properties and Uses of Hydrogen

MCQ▾

Question

In manufacturing of hydrogen, which of the following process involves “gassing reaction”?

Choices

Choice (4) Response
a.

Electrolysis

b.

Lane’s process

c.

Steam-reforming process

d.

Bosch’s process

Question number: 38

» Hydrogen » Preparation, Properties and Uses of Hydrogen

MCQ▾

Question

Abundance of hydrogen in the earth’s atmosphere is very small. Because?

Choices

Choice (4) Response
a.

Hydrogen readily combined with oxygen of atmosphere

b.

The earth’s gravity is weak to hold light molecules

c.

Hydrogen is diatomic in nature

d.

Hydrogen is inflammable

Question number: 39

» Hydrogen » Preparation, Properties and Uses of Hydrogen

MCQ▾

Question

Pure hydrogen is obtained by carrying electrolysis of?

Choices

Choice (4) Response
a.

Barium hydroxide solution

b.

Water containing sodium hydroxide

c.

Water containing sulphuric acid

d.

KOH solution

Question number: 40

» Hydrogen » Physical and Chemical Properties of Water

MCQ▾

Question

Which of the following is the freezing point of heavy water?

Choices

Choice (4) Response
a.

-3.80C

b.

O0C

c.

3.80C

d.

380C

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