MCQs of Solid State

Solid State MCQs

Showing 101 to 110 out of 151 Questions

101.

A solid has a structure in which 'W,/i>'-atoms are located at the corners of a cubic lattice, 'O'-atoms at the centres of edges and Na-atoms at the centre of cube. The formula of the compound is _____ .

(a) Na₂WO₃

(b) Na₂WO₂

(c) NaWO₂

(d) NaWO₃

102.

In a compound, atoms of element Y form ccp lattice and those of element X occupy

\frac{2}{3} rd

of tetrahedral voids. The formula of the component will be _____ .

(a)	X₄Y₃
(b)	X₂Y₃
(c)	X₂Y
(d)	X₃Y₄

103.

What percentage of Fe³⁺ is present in Fe_0.93O ?

(a)	15%
(b)	12%
(c)	9%
(d)	13%

104.

A crystalline solid is made up of A, B and C elements. Atoms of A form fcc packing; atoms of B occupy octahedral voids while atoms of C occupy tetrahedral voids. What will be the simplest formula of solids, if atoms along one body (internal) diagonal are removed ?

(a)	A₂B₄C₄
(b)	A₅B₄C₈
(c)	A₆B₃C₄
(d)	A₃B₃C₆

105.

How many unit cells are present in a cube shaped crystal of NaCl of mass 1.00 g ?

[Atomic masses of Na= 23, Cl=35.5]

(a)	2.57 × 10²¹
(b)	5.14× 10²¹
(c)	1.28 × 10²¹
(d)	1.71 × 10²¹

106.

An element possesses in bcc structure with a cell edge as 288 pm. The density of this metal is 7.2 gm cm^-3. How many atoms does 208 g of the element contain ?

(a)	14.4 × 10²⁰
(b)	24.16 × 10²³
(c)	12.08 × 10²³
(d)	28.8 × 10²⁰

107.

In which of the following solids, constituent particles are atoms ?

(a)	SiO₂
(b)	Solid SO₂
(c)	MgO
(d)	Solid H₂O

108.

The co-ordination number of zinc atom in its crystal is _____ .

(a)	4
(b)	12
(c)	8
(d)	6

109.

_____ schottky defect is present in 58.5 gm NaCl.

(a)	10²²
(b)	10¹⁶
(c)	10⁶
(d)	10⁸

110.

Number of atoms per unit cell in scc, bcc and fcc are _____, _____ and _____ respectively.

(a)	1, 2, 3
(b)	4, 1, 2
(c)	1, 2, 4
(d)	2, 1, 4

Showing 101 to 110 out of 151 Questions