Question

phenol reacts with zinc dust.
ii) acetylene passed through the red-hot tube at 500C.

Answer 1

Answer:

i When phenol is heated with zn dust reduction of phenol occurs and it gets converted into Benzene with ZnO as a by-product. ... The O- thus formed accepts an electron from Zn and forms oxide ion. In this way zinc forms zinc oxide and phenyl radical thus produced forms a bond with H radical.

ii.When ethyne (acetylene) is passed through a red hot copper tube, it polymerises to benzene.

I Am assuming that you forgot to write what happens anyways please mark this answer the brainliest