MCQ
Which of the following is the weakest acid
- ✓$HF$
- B$HCl$
- C$HBr$
- D$HI$
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Assertion $(A)$ : Vinyl halides do not undergo nucleophilic substitution easily.
Reason $(R)$ : Even though the intermediate carbocation is stabilized by loosely held $p-$ electrons, the cleavage is difficult because of strong bonding.
