Assertion (A) : Haloalkanes react with KCN to form alkyl cyanides as a main product while with AgCN

Question

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). 

Assertion (A) : Haloalkanes react with KCN to form alkyl cyanides as a main product while with AgCN form isocyanide as the main product. 

Reason (R) : KCN and AgCN both are highly ionic compounds. 

In the light of the above statement, choose the most appropriate answer from the options given below: 

(1) (A) is correct but (R) is not correct 

(2) Both (A) and (R) are correct but (R) is not the correct explanation of (A) 

(3) (A) is not correct but (R) is correct 

(4) Both (A) and (R) are correct and (R) is the correct explanation of (A)

Answer 1

(1) (A) is correct but (R) is not correct 

AgCN is mainly covalent in nature and nitrogen is available for attack, so alkyl isocyanide is formed as main product.