Question

valancy of Ni, Cu, Zn, Br, Ag, I,Ba, W, Pt, Au, Hg, Pd

Answer 1

The valency are:
Ni...... +2
Cu.....+2
Zn......+2
Br........ +2
Ag...... +I
I........... - 1
Ba...... +2
Au....... +1
Hg...... +2
Platinous(pt).....+2
Platinic(pt)........+4

Answer 2

The valency are:

Ni...... +2

Cu.....+2

Zn......+2

Br........ +2

Ag...... +I

I........... - 1

Ba...... +2

Au....... +1

Hg...... +2

Platinous(pt).....+2

Platinic(pt)........+4