Question

Find valency of sulphur in so4

Answer 1

SO4 has a valency of 2 . To find its valency ,I can advice you 2 ways which I often use are:

a•SO4 is an anion which has came from an acid H2SO4, in which hydrogen as always has valency 1. Since hydrogen is more electro+ve than SO4,its oxidation no. will be +1. So by using this information we can find oxidation no. of SO4.

Let x be oxidation no. of SO4. Since, the sum of oxidation nos. will be zero, so equating it with zero:

Answer 2

let the valency of sulphur be x..
x+4(-2)=-2
x=-2+8
x=6
valency of sulphur in SO4is 6..
Hope you understand..
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