Question

Assertion: Ethyl alcohol reacts with $HI$ but not with $HCN$.

Reason: $C{N}^{-}$ is a weaker nucleophile than $I^{-}$

• A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
• B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
• C. Assertion is true and Reason is false
• D. Assertion is false and Reason is true

Answer 1

Answer: (A)

Both Assertion and Reason are true and Reason is the correct explanation of Assertion

Ethyl Alcohol reacts with $HI$ but does not react with $HCN$ because the dipole moment of $CN$ is less than one and electronegativity varies. Electronegativity of $CN$ is higher than $I^{-}$. So Ethyl alcohol reacts with $HI$ easily.