States of Matter-Solid State (NEET Chemistry): Questions 7 - 12 of 52

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Question number: 7

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

MCQ▾

Question

How many init cells are present in 39 grams of potassium that crystallizes in body-centered cubic structure?

Choices

Choice (4) Response

a.

NA

b.

NA2

c.

0.75 NA

d.

0.5 NA

Question number: 8

» States of Matter » Solid State » Voids

MCQ▾

Question

Which of the following compound are used in memory units of computers?

Choices

Choice (4) Response

a.

Potassium bromide

b.

Ferrites

c.

Sodium oxides

d.

Zinc sulphides

Question number: 9

» States of Matter » Solid State » Classification of Solids

MCQ▾

Question

Which of the following statements is not true about ionic crystals?

Choices

Choice (4) Response

a.

These are good conductors in solid state

b.

These are quite hard in nature

c.

These are crystalline solids at room temperature

d.

Soluble in polar solvents

Question number: 10

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

MCQ▾

Question

At room temperature, sodium crystallizes in body centered cubic lattice with a=4.24A°. Calculate the theoretical density of sodium?

Choices

Choice (4) Response

a.

1.002 g/cm3

b.

3.5 g/cm3

c.

2.004 g/cm3

d.

Question does not provide sufficient data or is vague

Question number: 11

» States of Matter » Solid State » Imperfection in Solids

MCQ▾

Question

Which of the following defect causes decrease in the density of a crystal?

Choices

Choice (4) Response

a.

Frenkel

b.

Interstitial

c.

F-centered

d.

Shottky

Question number: 12

» States of Matter » Solid State » Imperfection in Solids

MCQ▾

Question

Which of the following compound is also known as Berthollide compound?

Choices

Choice (4) Response

a.

Vanadium oxide

b.

Ferrous oxide

c.

Zinc oxide

d.

All a. , b. and c. are correct

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