Ethyne is passed through a hot tube containing organo-nickel catalyst to produce
Answer Details
Passing ethyne (also known as acetylene) through a hot tube containing organo-nickel catalyst results in the production of benzene. This reaction is known as the "nickel carbide" or "cyclization" reaction.
During the reaction, the ethyne molecules undergo a cyclization process in which the carbon atoms in the molecule bond together to form a ring. The organo-nickel catalyst helps to facilitate this process by providing a site for the carbon atoms to come together and form the ring.
The reaction proceeds as follows:
2C2H2 → C6H6
In other words, two molecules of ethyne combine to form one molecule of benzene.
Therefore, the correct answer is "benzene".