NEET Chemistry: Questions 486 - 491 of 1145

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Question number: 486

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

MCQ▾

Question

What is the shape of a crystal system in which Equation

Choices

Choice (4) Response

a.

Hexagonal

b.

Rhombohedra

c.

Tetragonal

d.

Triclinic

Question number: 487

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

MCQ▾

Question

A compound formed by elements A and B crystallizes in cubic structure where A atoms are the corners of a cube and B atoms are at face centered. What is the formula of the compound?

Choices

Choice (4) Response

a.

AB3

b.

A2B

c.

AB

d.

Question does not provide sufficient data or is vague

Question number: 488

» States of Matter » Solid State » Classification of Solids

MCQ▾

Question

Which one of the following is not the property of crystalline solid?

Choices

Choice (4) Response

a.

Definite geometry

b.

High intermolecular point

c.

Isotropic

d.

Sharp melting point

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

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