NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 492 - 499 of 1258

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Question number: 492

» States of Matter » Solid State » Ionic

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MCQ▾

Question

The dissolution of ionic crystal in a polar solvent depends on?

Choices

Choice (4) Response

a.

Temperature

b.

Dielectric constant

c.

Hydration energies

d.

None of the above

Question number: 493

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

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MCQ▾

Question

In Bragg’s equation for diffraction of X-rays, n represents?

Choices

Choice (4) Response

a.

Number of mole

b.

Avagadro’s number

c.

Order of reflection

d.

Quantum number

Question number: 494

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

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MCQ▾

Question

Which of the following formula is used to determine the density of unit cell?

Choices

Choice (4) Response

a.

b.

c.

d.

None of the above

Question number: 495

» States of Matter » Solid State » Imperfection in Solids

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MCQ▾

Question

In a solid lattice, the cation has left a lattice site and is located at an interstitial position. The lattice defect is?

Choices

Choice (4) Response

a.

Vacancy defect

b.

Schottky defect

c.

Interstitial defect

d.

Frenkel defect

Question number: 496

» States of Matter » Solid State » Electrical, Magnetic and Dielectric Properties

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MCQ▾

Question

Which of the following metal oxides shows anti-ferromagnetic properties?

Choices

Choice (4) Response

a.

NiO

b.

CrO2

c.

MnO2

d.

Both a. and c. are correct

Question number: 497

» States of Matter » Solid State » Classification of Solids

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MCQ▾

Question

The number of crystal systems known is?

Choices

Choice (4) Response

a.

6

b.

7

c.

8

d.

5

Question number: 498

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

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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.

4,8, 2

c.

2,4, 1

d.

4,1, 2

Question number: 499

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

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MCQ▾

Question

Bragg’s law is given by the following equation?

Choices

Choice (4) Response

a.

b.

c.

d.