States of Matter (NEET Chemistry): Questions 75 - 81 of 104

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Question number: 75

» States of Matter » Solid State » Classification of Solids

MCQ▾

Question

The number of crystal systems known is?

Choices

Choice (4) Response

a.

7

b.

6

c.

8

d.

5

Question number: 76

» States of Matter » Solid State » Packing in Solids (Fcc, Bcc and Hcp Lattices)

MCQ▾

Question

The number of atoms per unit cell in a simple cubic, face centered cubic and body centered cubic are?

Choices

Choice (4) Response

a.

1, 4, 2

b.

4, 1, 2

c.

2, 4, 1

d.

4, 8, 2

Question number: 77

» States of Matter » Solid State » Bragg's Law and Its Applications

MCQ▾

Question

Bragg’s law is given by the following equation?

Choices

Choice (4) Response

a.

n/2λ=2θsinθ

b.

nλ=2dsinθ

c.

2nλ=dsinθ

d.

nλ=2θsinθ

Question number: 78

» States of Matter » Solid State » Imperfection in Solids

MCQ▾

Question

In potassium chloride crystal, what type of defects may arise generally?

Choices

Choice (4) Response

a.

Fankels defect

b.

Shottky defect

c.

None of the above

d.

All of the above

Question number: 79

» States of Matter » Solid State » Calculations Involving Unit Cell Parameters

MCQ▾

Question

A unit cell of sodium chloride has four formula units. The edge length of unit cell is 0.64 nm. What is the density of sodium chloride?

Choices

Choice (4) Response

a.

5.34 g/cm3

b.

3.22 g/cm3

c.

7.23 g/cm3

d.

2.16 g/cm3

Question number: 80

» States of Matter » Solid State » Packing in Solids (Fcc, Bcc and Hcp Lattices)

MCQ▾

Question

In the face centered cubic structure, what will be the contribution of atoms per unit cell?

Choices

Choice (4) Response

a.

2

b.

1

c.

3

d.

4

Question number: 81

» States of Matter » Solid State » Calculations Involving Unit Cell Parameters

MCQ▾

Question

Density of lithium atom is 0.53 g/cm3. The edge length of lithium is 3.5 A°. Find out the number of lithium atoms in a unit cell. Atomic mass of lithium is 6.94?

Choices

Choice (4) Response

a.

1

b.

2.5

c.

3.3

d.

2

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