Alkyl substituted benzenes are prepared by __________reaction.

Ethyl benzene can not be prepared by :

How is benzene prepared from ethyne?

How is benzene is prepared commercially?

How is benzene diazonium chloride prepared ?

The alkyl halides required to prepare by Wurtz reaction are

The alkyl halides required to prepare by wurtz reaction are

Which of the following substitution of benzene is ortho-para in electrophilic substitution and ortho-para in nucleophilic substitution ?