Match the underlined atoms in Column I and oxidation number in Column II. Column I Column II (a) MnO4- (p) 1 (b) CrO42- (q) 2 (c) ZnO22- (r) 7 (d) [Ag(CN)2]- (s) 6

(a)-(p), (b)-(s), (c)-(q), (d)-(r) (a)-(r), (b)-(q), (c)-(s), (d)-(p) (a)-(s), (b)-(r), (c)-(q), (d)-(p) (a)-(r), (b)-(s), (c)-(q), (d)-(p)

(a)-(r), (b)-(s), (c)-(q), (d)-(p)

MnO4-  x + 4(-2) = -1 x - 8 = -1 x = -1 + 8 = 7 CrO42-  x + 4(-2) = -2 x - 8 = -2 x = -2 = 8 = +6 ZnO22-  x + 2(-2) = -2 x - 4 = -2 x = -2 + 4 = +2 [Ag(CN)2]-  x + 2(-1) = -1 x - 2 = -1 x = -1 + 2 = 1