Hydrocarbons Question 10

Question 10 - 31 January - Shift 1

Choose the correct set of reagents for the following conversion

trans $(Ph-CH=CH-CH_3) \to$ cis $(Ph-CH=CH-CH_3)$

(1) $Br_2$, alc $KOH, NaNH_2, Na(Liq NH_3.$ )

(2) $Br_2$, alc KOH, $NaNH_2, H_2$ Lindlar Catalyst

(3) $Br_2$, aq KOH, $NaNH_2, H_2$ Lindlar Catalyst

(4) $Br_2$, aq $KOH, NaNH_2, Na(Liq NH_3)$

Show Answer

Answer: (2)

Solution:

(1) Alc. $KOH$

(2) $NaNH_2$