States of Matter-Solid State [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Chemistry]: Questions 47 - 53 of 119

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Question 47

Question MCQ▾

In the crystal of CsCl, the nearest neighbors of each Cs ion are?

Choices

Choice (4)Response

a.

6 Cs ions

b.

8 Cs ions

c.

8 chloride ions

d.

6 chloride ions

Edit

Question 48

Question MCQ▾

A particular solid is very hard and has a high melting point. In solid state it is a non conductor of electricity. Classify the solid?

Choices

Choice (4)Response

a.

Molecular

b.

Metallic

c.

Ionic

d.

Amorphous

Edit

Question 49

Question MCQ▾

X-rays of wavelength 1.54 A0 strike a crystal and are observed to be deflected at an angle of 22.5°. Assuming that n = 1, calculate the spacing between the planes of atoms that are responsible for this reflection?

Choices

Choice (4)Response

a.

3.1 A°

b.

4.2 A°

c.

2.01 A°

d.

3.71 A°

Edit

Question 50

Question MCQ▾

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

Choices

Choice (4)Response

a.

2

b.

3

c.

1

d.

4

Edit

Question 51

Question MCQ▾

How many chloride ions are there around sodium ion in sodium chloride crystal?

Choices

Choice (4)Response

a.

6

b.

3

c.

4

d.

8

Edit

Question 52

Question MCQ▾

Which of the following crystal has the Antifluorite structure?

Choices

Choice (4)Response

a.

AgCl

b.

HgS

c.

AgI

d.

Na2O

Edit

Question 53

Appeared in Year: 2016

Question MCQ▾

The decomposition of phosphine (PH3) on tungsten at low pressure is a first-order reaction. It is because the

Choices

Choice (4)Response

a.

Rate is proportional to the surface coverage

b.

Rate of decomposition is very slow

c.

Rate is inversely proportional to the surface coverage

d.

Rate is independent of the surface coverage

Edit