NEET Chemistry: Questions 444 - 450 of 677

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Question number: 444

» States of Matter » Gaseous State » Concept of Average, Root Mean Square and Most Probable Velocities

MCQ▾

Question

Calculate the pressure exerted by 1023 gas molecules each of mass 10-22 g in a container of volume 1 litre, the rms speed is 105cm s-1?

Choices

Choice (4) Response

a.

33.0×107 dyne cm

b.

3.33×107 dyne cm-2

c.

3.56 cm-2

d.

None of the above

Question number: 445

» 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: 446

» 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: 447

» Hydrocarbons » Alkanes » Chemical Properties

MCQ▾

Question

C2H6+SO2+Cl2U.Vlight Product. In this reaction product will be -

Choices

Choice (4) Response

a.

CH3CH2Cl

b.

C2H2

c.

CH3CH2SO2Cl

d.

C2H4

Question number: 448

» 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

Question number: 449

» Hydrogen » Isotopes

MCQ▾

Question

Which of the following isotopes of hydrogen is used as bombarding agent?

Choices

Choice (4) Response

a.

Protium

b.

Tritium

c.

Deuterium

d.

All of the above

Question number: 450

» States of Matter » Liquid State » Viscosity

MCQ▾

Question

The mathematical expression for vapour pressure is?

Choices

Choice (4) Response

a.

CR/T=P

b.

P = CRT

c.

PR=CT

d.

PC = RT

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