Direction for: In each of the following questions a statement of Assertion is given followed by a corresponding statement of Reason just below it. Of the statements mark the correct answer as
Assertion: Methyl cyanide has higher boiling point than methyl isocyanide. Reason: Dipole moment of methyl cyanide is higher than that of methyl isocyanide.A) If both Assertion: and Reason: are true and the Reason: is the correct explanation of the Assertion:.
B) If both Assertion: and Reason: are true but the Reason: is not the correct explanation of the Assertion:.
C) If Assertion: is true but Reason: is false.
D) If both Assertion: and Reason: are false.
Correct Answer: A
Solution :
Dipole moment of methyl cyanide is higher than the dipole moment of methyl isocyanide i.e., the former one is more and thus, has the greater attractive forces. Thus, the boiling point of methyl cyanide is higher than the boiling point of methyl isocyanide.
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