Q.

Valency of terminal sulphur in Na2S2O3 , is

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a

Two

b

Three

c

Four

d

Six

answer is A.

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Detailed Solution

Valency of Na2S2O3 is supposed to be x, then 2+2x+(−6)=0,2x−4=0,x=2
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Valency of terminal sulphur in Na2S2O3 , is