NEET Chemistry: Questions 470 - 475 of 891

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Question number: 470

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

MCQ▾

Question

What is the volume of oxygen liberated at NTP by complete decomposition of 100 ml of 2M solution of hydrogen peroxide?

Choices

Choice (4) Response

a.

2.24 L

b.

22.4 L

c.

224 L

d.

0.224 L

Question number: 471

» Atomic Structure » Quantum Mechanical Model of Atom

MCQ▾

Question

In hydrogen, an electron in its normal state absorbs two times of the energy, as it requires escaping (13.6 eV) from the atom, the wavelength of the emitted electron will be -

Choices

Choice (4) Response

a.

2.34 x 10-10 m

b.

3.46 x 10-10 m

c.

4.44 x 10-10 m

d.

1.34 x 10-10 m

Question number: 472

» States of Matter » Gaseous State » Kinetic Theory of Gases

MCQ▾

Question

What is average kinetic energy per mole of CO2 gas at 27℃ in ergs (units)?

Choices

Choice (4) Response

a.

3.741×10-10 erg

b.

374×108 erg

c.

374×10-8 erg

d.

3.741×1010 erg

Question number: 473

» States of Matter » Gaseous State » Concept of Absolute Scale of Temperature

MCQ▾

Question

The critical temperature of gas is that temperature?

Choices

Choice (4) Response

a.

at which the volume of the gas becomes zero

b.

above which it can no longer remain in the gaseous state

c.

at which it solidifies

d.

above which it cannot be liquefied by pressure

Question number: 474

» States of Matter » Gaseous State » Gas Laws - Boyle's Law, Charle's Law, Graham's Law of Diffusion

MCQ▾

Question

A sample of gas occupies 10 lit under a pressure of 1 atm. If the temperature of the gas does not change, what will be its volume if the pressure is increased to 2 atm?

Choices

Choice (4) Response

a.

6 litre

b.

6.4 litre

c.

5 litre

d.

4 litre

Question number: 475

» Hydrogen » Physical and Chemical Properties of Heavy Water

MCQ▾

Question

A solution of heavy water containing sodium carbonate when electrolyzed, which of the following gas evolve at cathode?

Choices

Choice (4) Response

a.

H2

b.

O2

c.

D2

d.

CO2

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