Question

The product (B) of the following reaction:

• A.
• B.
• C.
• D. None of the above

Answer 1

The correct option is C

Due to the -I effect of three F atoms, addition is anti markovnikov's (negative part of the addendum is adding to the C atom containing more number of H atoms).
The resonance effect (+ R effect) from the lone pair $e^{-}$ s of F atoms is not operative because lone pair $e^{-}$ s and double bond are not in conjugation. So the -I effect of F atoms
Is operative and, hence the electromeric effect of double bond takes place from $C_1$ to $C_2$

Hence, the correct answer will be option (c).