Which amongst the following is the strongest acid?

1.	Which amongst the following is the strongest acid?
Answer» `CHBr_(3)` `CH(CN)_(3)` `CHI_(3)` `CHCl_(3)` Solution :Of the GIVEN compounds `CH(CN)_(3)` is STRONGEST acid because its conjugate base is stabilised by resonance. `CHBr_(3) and CHI_(3)` are less stable as their conjugate bases are stabilised by inductive effect of HALOGENS. Conjugate base of `CHCl_(3)` INVOLVES back bonding between 2p and 3p orbitals

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