Alkyl Halides - Result Question 43
####43. Match the chemical conversion in Column I with the appropriate reagents in Column II and select the correct answer using the code given below the lists.
(2013 Adv.)
Codes
| P | Q | R | S | |
|---|---|---|---|---|
| (a) | 2 | 3 | 1 | 4 |
| (b) | 3 | 2 | 1 | 4 |
| (c) | 2 | 3 | 4 | 1 |
| (d) | 3 | 2 | 4 | 1 |
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Answer:
Correct Answer: 43. $A \rightarrow q, B \rightarrow q, C \rightarrow r, D \rightarrow p, s$
Solution:
(i) $Hg(OAC) _2$ Mercuration-
(ii) $NaBH _4$
(1) demercuration adds $H _2 O$ by Markownikoff’s rule without rearrangement
(ii) $BH _3 O _2 / OH^{-}$
(4) Hydroboro-oxidation adds $H _2 O$ by anti-Markownikoff’s rule Thus, $P-(2), \quad Q-(3), \quad R-(1), \quad S-(4)$
