3rd Nov Solid State Quiz 6 – Punjab Meritorious School Preparation Portal

Welcome to your 3rd Nov Solid State Quiz 6 CBT TEST

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When molten zinc is converted into solid state, it acquires hcp structure. The number of nearest neighbours of Zn will be

Schottky defect generally appears in:

NaCl

KCl

CsCl

all of these

Equal number of atoms or ion missing from normal lattice point creating a vacancy due to

Frenkel defect

Mass defect

Schottky defect

Interstitial defect

The number of atoms in 100 g of an fcc crystal with density, d = 10 g/cm³ and cell edge equal to 100 pm, is equal to

The edge length of unit cell of a metal having molecular weight 75 g/mol is 5Å which crystallizes in cubic lattice. If the density is 2g/cc then find the radius of metal atom. (N_A = 6 × 10²³). Give the answer in pm.

217 pm

210 pm

220 pm

205 pm

Edge length of a cube is 400 pm. Its body diagonal would be

500 pm

566 pm

600 pm

693 pm

Potassium has a bcc structure with nearest neighbour distance 4.52 Å. Its atomic weight is 39. Its density (in kg m^–3) will be

454

804

852

910

A solid AB crystallises as NaCl structure and the radius of the cation is 0.100nm. The maximum radius of the anion can be:

0.137 nm

0.241 nm

0.274 nm

0.482 nm

CsBr has bcc structure with edge length 4.3. The shortest interionic distance in between Cs⁺ and Br^– is

3.72

1.86

7.44

4.3

Potassium fluoride has NaCl type structure. What is the distance between K⁺ and F^– ions if cell edge is ‘a’ cm.

2a cm

a/2 cm

4a cm

a/4 cm

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