Question

36. An element which can exhibit valencies of 2, 4 and 6 can be
(a) copper
(b) iron
(c) mercury
(d) sulphur​

Answer 1

Answer:

sulphur and iron can exhibit valancies of 2,4 and 6

Answer 2

Answer:

sulphur has 2 velence electron in its outer most shell hence it exhibit velencies 2,4and 6