Hydrogen (NEET (National Eligibility cum Medical Entrance Test) Chemistry): Questions 34 - 39 of 50

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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.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 35

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

MCQ▾

Question

When 50 % solution of Equation 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.

Equation and Equation

c.

Equation 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

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