Acidity of diprotic acids in aqueous solutions increases in the order:-

(a) H2S<H2Se<H2Te
(b) H2Se<H2S<H2Te
(c) H2Te<H2S<H2Se
(d) H2Se<H2Te<H2S

Concept Videos :-

#2 | 15th Group: Properties: II
#3 | 15th Group: Ammonia

Concept Questions :-

group 15 ,preparation and properties
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