NEET Chemistry: Questions 489 - 495 of 891

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Question number: 489

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

MCQ▾

Question

If ammonium chloride crystallizes in as body centered lattice with a unit distance of 387 pm, then what is the distance between oppositely charged ions in the lattice?

Choices

Choice (4) Response

a.

335.15pm

b.

387pm

c.

321 pm

d.

375.5 pm

Question number: 490

» States of Matter » Solid State » Unit Cell and Lattices

MCQ▾

Question

The geometrical form consisting only of a regular array of points in space is called?

Choices

Choice (4) Response

a.

Cube

b.

Lattice

c.

Unit cell

d.

Crystal

Question number: 491

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

MCQ▾

Question

If the distance between sodium ions and chloride ions in NaCl crystal is 265 pm, then edge length of the unit cell will be?

Choices

Choice (4) Response

a.

530 pm

b.

132.5 pm

c.

765 pm

d.

265 pm

Question number: 492

» States of Matter » Solid State » Ionic

MCQ▾

Question

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

Choices

Choice (4) Response

a.

Dielectric constant

b.

Temperature

c.

Hydration energies

d.

All of the above

Question number: 493

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

MCQ▾

Question

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

Choices

Choice (4) Response

a.

Quantum number

b.

Number of mole

c.

Order of reflection

d.

Avagadro’s number

Question number: 494

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

MCQ▾

Question

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

Choices

Choice (4) Response

a.

ZMNV

b.

nMVN0

c.

ZM/N0a3

d.

None of the above

Question number: 495

» States of Matter » Solid State » Imperfection in Solids

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.

Frenkel defect

c.

Schottky defect

d.

Interstitial defect

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