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Question

Assertion :Concentrated and not dilute H2SO4 -behaves as a dehydrating agent. Reason: Concentrated sulphuric acid behaves as a strong dehydrating agent as the hydration reaction is highly exothermic. It has strong affinity for water removing water molecules from other compounds

A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
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C
Assertion is correct but Reason is incorrect
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D
Both Assertion and Reason are incorrect
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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Concentrated sulphuric acid behaves as a strong dehydrating agent as the hydration reaction is highly exothermic. It has strong affinity for water removing water molecules from other compounds.
It has a strong oxidising property as when it reacts with metals produces sulphur dioxide,water and sulphate ions while dilute sulphuric acid produces hydrogen and salt.

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