NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 492 - 498 of 1259

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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

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