Use the following molecular formulae to determine the valencies of H, – InterviewSolution

1.

Use the following molecular formulae to determine the valencies of H, Cl, O, S, N, C, Br, I, Na. Molecular formulae – H2 , HCl, H2 O, H2 S, NH3 , CH4 , HBr, HI, NaH.

Answer»

Molecular formula	Valencies
HCl	H = 1, Cl = 1
H₂	H = 1
H₂O	H = 1, O = 2
H₂S	H = 1, S = 2
NH₃	H = 1, N = 3
CH₄	H = 1, C = 4
HBr	H = 1, Br = 1
HI	H = 1, I = 1
NaH	H = 1, Na = 1

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