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Question

The weakest acid among the following is :

A
H2SO4
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B
H2SO3
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C
H2SeO4
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D
H2SeO3
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Solution

The correct option is D H2SeO3
Acidity of oxyacids decreasing down the group and acids with higher axidation no of central atom is stronger acid
H2SO4>H2SO3>H2SeO4>H2SeO3

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