Question

Q.19. Arrange the following in the order of property indicated for each set:
(i) H20, H2S, H2Se , HzTe -increasing acidic character
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Answer 1

Answer:

acidic character,

H2Te > H2Se > H2S > H2O

Explanation:

Because of decrease in bond dissociation enthalpy, acidity of hydrides increases down the group.

Increasing order of acidity is :

H2O<H2S<H2Se<H 2Te