Q. Choose the correct reagents used in the conversion

Question
p q r s
alc KOH NaOH
HBr alc.KOH
HBr alc.KOH red hot iron tube
alc. KOH red hot iron tube

 1422  150 NTA AbhyasNTA Abhyas 2020Hydrocarbons Report Error

Solution:

Solution

Here is used for second time elimination as it is stronger reagent and suitable for this step.