State the valency of sulphur in :a)SO2,b)SO3
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We can determine the valency by the number of oxygen atoms present in and .
As we can observe that in , number of oxygen atoms is -2 and the valency of oxygen atom is 2.
Thus, the total valency become -4.
Therefore, the valency of S will be +4. Likewise, in the , the number of oxygen atoms is 3.
Thus, that gives us a valency of +6 on the sulphur.
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a. The valency of Sulphur in SO2 is +4
b. The valency of sulphur in SO3 is +6
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