1
KCET 2022
MCQ (Single Correct Answer)
+1
-0

How many number of atoms are there in a cube based unit cell, having one atom on each corner and 2 atoms on each body diagonal of cube?

A
6
B
4
C
9
D
8
2
KCET 2022
MCQ (Single Correct Answer)
+1
-0

Which of the following is not true about the amorphous solids?

A
They may become crystalline on keeping for long time.
B
Amorphous solids can be moulded by heating.
C
They are anisotropic in nature.
D
On heating they may become crystalline at certain temperature.
3
KCET 2022
MCQ (Single Correct Answer)
+1
-0

Alkali halides do not show dislocation defect because

A
anions cannot be accommodated in vacant spaces
B
cations and anions have almost equal size
C
there is large difference in size of cations and anions
D
cations and anions have low coordination number
4
KCET 2021
MCQ (Single Correct Answer)
+1
-0

In chrysoberyl, a compound containing beryllium, aluminium and oxygen, oxide ions form cubic close packed structure. Aluminium ions occupy $$\frac{1}{4}$$th of octahedral voids. The formula of the compound is

A
$$\mathrm{BeAlO}_4$$
B
$$\mathrm{BeAl}_2 \mathrm{O}_4$$
C
$$\mathrm{Be}_2 \mathrm{AlO}_2$$
D
$$\mathrm{BeAlO}_2$$
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