Question

Answer this one .........​

Answer 1

Answer:

Ni(CO)4

Explanation:

Ni(CN)4    CN have a  charge of -1        x-4=0    so x = 4

Ni(CO)4    CO has a charge    0          so x = 0

fe2o3      2x-3(2) = 0       x = 3

sf6      x-6=0       so x=6

Answer 2

mussi kesi h Tu bahut miss kiya tereko agr is msg ko padh rhi h to mujhe msg jrur krna ok (≡^∇^≡)(≡^∇^≡)