1) A is right, R is right, but I don't think that's a proper reason. The reason should be benzyne mechanism.
2. A is right, R is false. Vinyl carbocations are extremely unstable.
1)A:o-chlorotoulene on treatment with NaNH2/NHH3 gives o and m toulidene
R: this reaction is nucleophlic aromatic substitution
2)A:Alkeenes are more reactive than alkynes in electrophilic addition reactions
R:Alkyl carbocation is less stable than vinyl carbocation
*****only ans plzzzzz
1) A is right, R is right, but I don't think that's a proper reason. The reason should be benzyne mechanism.
2. A is right, R is false. Vinyl carbocations are extremely unstable.