Constituent
Elements
Valency X
Sr.
Valency of Number of bonds formed
*H'
by 'X' with H
No.
Molecular
formula of a
compound
HCI
H
Х
1
Н
CI
1
1
2
2
H
1
0
НО
1
3
H.S
1
4
ΝΗ.
1
5
HBr
1
6
НІ
1
7
NaH
1
8
CH
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