Assertion :P4O10 is not used to dry NH3. Reason: P4O10 is acidic and NH3 is basic.
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
Assertion is incorrect but Reason is correct
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Solution
The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion P4O10 is not used to dry NH3 because P4O10 is acidic and NH3 is basic and they both react as shown in following reaction. P4O10+12NH3+6H2O→4(NH4)3PO4.