NEET Chemistry: Questions 462 - 469 of 1110

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Question number: 462

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

MCQ▾

Question

Which one of the following does not represent Boyles law?

Choices

Choice (4) Response

a.

T2V1=T1V2

b.

PV=constant

c.

V1/P

d.

P1V1=P2V2

Question number: 463

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

MCQ▾

Question

At what temperature is the kinetic energy of a gas molecule half of its value at 327℃?

Choices

Choice (4) Response

a.

13.5 ℃

b.

-123 ℃

c.

45℃

d.

27℃

Question number: 464

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

MCQ▾

Question

Calculate the root mean square speed of hydrogen molecule at STP?

Choices

Choice (4) Response

a.

1844.9 ms-1

b.

1722.7 ms-1

c.

156 ms-1

d.

1454.8 ms-1

Question number: 465

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

MCQ▾

Question

The root mean square speed at NTP of the species can be calculated from the expression?

Choices

Choice (4) Response

a.

3PVM

b.

3RTM

c.

3Pd

d.

All a. , b. and c. are correct

Question number: 466

» Hydrogen » Isotopes

MCQ▾

Question

Which of the following isotopes of hydrogen is radio active in nature?

Choices

Choice (4) Response

a.

Deuterium only

b.

Deuterium and tritium

c.

Protium only

d.

Tritium only

Question number: 467

» Hydrogen » Physical and Chemical Properties of Water

MCQ▾

Question

What is the tolerable amount of hardness of water in ppm in domestic usage?

Choices

Choice (4) Response

a.

100 - 200 ppm

b.

150 - 200 ppm

c.

100 ppm

d.

100 - 150 ppm

Question number: 468

» States of Matter » Liquid State » Surface Tension

MCQ▾

Question

When there is a rise in temperature the surface tension will be?

Choices

Choice (4) Response

a.

Decreases

b.

Increase

c.

Does not vary

d.

None of the above

Question number: 469

» Hydrogen » Physical and Chemical Properties of Water

MCQ▾

Question

The hardness of water sample containing 0.002 mole of magnesium sulphate dissolved in a litre is expressed as?

Choices

Choice (4) Response

a.

2000ppm

b.

20 ppm

c.

120 ppm

d.

200 ppm

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