| Assertion : \[C{{H}_{3}}OC{{H}_{3}}\] and \[{{C}_{2}}{{H}_{5}}OH\] has comparable molecular weight but boiling point of \[{{C}_{2}}{{H}_{5}}OH\] is more than dimethyl ether. |
| Reason: \[{{C}_{2}}{{H}_{5}}OH\] forms intermolecular H-bonding while \[C{{H}_{3}}OC{{H}_{3}}\] forms intramolecular H-bonding. |
A) Assertion and reason both are correct statements and reason is correct explanation for assertion.
B) Assertion and reason both are correct statements but reason is not correct explanation for assertion.
C) Assertion is correct statement but reason is wrong statement.
D) Assertion is wrong statement but reason is correct statement.
Correct Answer: C
Solution :
Due to the presence of hydroxyl group\[\left( -OH \right)\], there is extensive hydrogen bonding between the ethanol molecules \[\left( {{C}_{2}}{{H}_{5}}OH \right)\]. But there is no such hydrogen bonding in dimethyl ether (due to absence of \[-OH\]group). So, boiling point of dimethyl ether is much lower than ethanol.
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