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JEEMAIN and NEET
>>
Chemistry
>>
Chemical Bonding and Molecular Structure
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Q)
Among
C
a
H
2
,
N
H
3
,
N
a
H
and
B
2
H
6
which are covalent hydride ?
(
A
)
N
H
3
a
n
d
B
2
H
6
(
B
)
N
a
H
a
n
d
C
a
H
2
(
C
)
N
a
H
a
n
d
N
H
3
(
D
)
C
a
H
2
a
n
d
B
2
H
6
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