Solid State Test

Result

Solid State Test - 74

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Weekly Quiz Competition

Question 1
1 / -0

If silver iodide crystallizes in a zinc blende structure with $${I}^{-}$$ ion forming the lattice, the fraction of tetrahedral void occupied by $${Ag}^{+}$$ ion is

A
$$25$$%

B
$$50$$%

C
$$40$$%

D
$$60$$%

Solution
Question 2
1 / -0

Two metals A and B crystallize in $$bcc$$ and $$fcc$$ type structures. The ratio of number of atoms of A and B present in unit cell of their crystals is

A
0.5

B
1

C
2

D
4

Solution
Question 3
1 / -0

$$\alpha \ne \beta \ne \gamma \ne {90^ \circ };$$ $$a \ne b \ne c$$, crystal system can have

A
Primitive, end centered unit cells

B
Primitive, body centered unit cells

C
Primitive only

D
face centered and primitive
Question 4
1 / -0

Rank of simple unit cell is:

A
1

B
2

C
4

D
6

Solution
Question 5
1 / -0

What is the C.N. of a sphere in square packing in 2-D?

A
4

B
6

C
12

D
1
Question 6
1 / -0

Two ions $${ A }^{ + }$$ and $${ B }^{ - }$$ have radii of $$0.88\overset { \circ }{ A } $$ and $$2\overset { \circ }{ A } $$ respectively. What will be the type of crystal?

A
fcc

B
bcc

C
Simple cubic

D
None of these
Question 7
1 / -0

Packing fraction in 2-D hexagonal packing is

A
0.32

B
0.68

C
0.91

D
0.78

Solution
Question 8
1 / -0

Number of atoms per unit cell, if atoms are present at the corner of unit cell and 2 atoms at each body diagonal

A
9

B
10

C
6

D
4

Solution
Question 9
1 / -0

The packing efficiency of a simple cubic crystal with an interstitial atom exactly fitting at the body center is:

A
$$0.48$$

B
$$0.52$$

C
$$0.73$$

D
$$0.91$$

Solution
Question 10
1 / -0

A unit cell of diamond consists of ______.

A
6 units

B
4 units

C
8 units

D
10 units.