Sodium thiosulphate on strong heating gives a compound of the form AaBb then the value of b-a is :
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Solution
Sodium thiosulphate is aninorganic
pentahydrate compound, Na2S2O3·5H2O. The solid is anefflorescent(loses water readily) crystalline substance that
dissolves in water. It is also called sodium hyposulfite or “hypo”