Question

Isobutene with benzene in presence of sulphuric acid

Answer 1

The treatment of benzene with isobutene in the presence of sulphuric acid gives : isobutyl benzene. t-butyl benzene. n-butyl benzene.

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Answer 2

Answer:

Tone Dialing vs Pulse Dialing. Tone and pulse dialing are two ways of communicating with the central telephone relay to indicate the telephone number that you wish to call. Pulse dialing indicates each digit in the phone number by a series of clicks that corresponds only to that digit.