Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Pinky chaudhary
the carbocation formed in acetylene on the addition of first bromine is not stable so here the mechanism fallowed is SN2 While in phenylacetylene the carbocation formed is stable through resonance so here the SN1 Mechanism will be followed. hence it gives cis and trans both as product