NEET Chemistry: Questions 417 - 423 of 891

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Question number: 417

» Hydrogen » Preparation, Properties and Uses of Hydrogen

MCQ▾

Question

The correct order of thermal stability of hydrides is?

Choices

Choice (4) Response

a.

AsH3 < SbH3 < BiH3 < NH3 < PH3

b.

NH3>PH3>AsH3>SbH3>BiH3

c.

AsH3>SbH3>BiH3>NH3>PH3

d.

NH3<PH3<AsH3<SbH3<BiH3

Question number: 418

» Hydrogen » Physical and Chemical Properties of Heavy Water

MCQ▾

Question

Which of the following order is correct regarding latent heat of fusion of H2O and D2O?

Choices

Choice (4) Response

a.

H 2 O=D 2 O

b.

H 2 O>D 2 O

c.

H 2 O<D 2 O

d.

H 2 OD 2 O

Question number: 419

» Basic Concepts in Chemistry » Mole Concept

MCQ▾

Question

which of the following has the highest normality? (Consider each of the acid is 100 % ionized. )

Choices

Choice (4) Response

a.

1(M)H2SO4

b.

1 MPO3

c.

1(M)H3PO4

d.

1(M)HNO3

Question number: 420

» Hydrocarbons » Alkanes » Introduction

MCQ▾

Question

Find out the molecular weight of Hexane?

Choices

Choice (4) Response

a.

100.54 gmol

b.

86.17gmol

c.

70.54 gmol

d.

45.87 gmol

Question number: 421

» Hydrogen » Isotopes

MCQ▾

Question

Which of the following isotope of hydrogen has lowest density?

Choices

Choice (4) Response

a.

Protium

b.

Tritium

c.

Deuterium

d.

None of the above

Question number: 422

» States of Matter » Liquid State » Surface Tension

MCQ▾

Question

Which of the following liquid has maximum surface tension?

Choices

Choice (4) Response

a.

methyl alcohol

b.

ethyl alcohol

c.

Benzene

d.

water

Question number: 423

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

MCQ▾

Question

According to the kinetic theory of gases?

Choices

Choice (4) Response

a.

Molecules have considerable volume

b.

There are no intermolecular attractions

c.

Speed of molecules decreases from collision

d.

There are intermolecular attractions

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