Question

W A Can you recall? Use the following molecular formulae to determine the valencies of H, CI, O, S, N, C, Br, I, Na​

Answer 1

valency:-

H -> 1-

Cl -> 1-

O -> 2-

S -> 2-, 4-, 6-

N -> 3- and 5-

C -> 4-

Br -> 1-

I ->1-

Na -> 2+

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