Tardigrade
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Tardigrade
Question
Chemistry
Hardest compound of boron is
Q. Hardest compound of boron is
2329
197
AIIMS
AIIMS 2001
The p-Block Elements
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A
magnesium boride
6%
B
aluminium boride
11%
C
boron nitride
33%
D
boron carbide
50%
Solution:
Boron carbide is written as
B
4
C
. It is produced by reducing
B
2
O
3
with
C
at
160
0
∘
C
. Fibres of
B
4
C have an enormous tensile strength and are used to make bullet- proof clothing.