JEE Main Chemistry question
Not in JEE Main or NEET syllabus
For the preparation of a detergent "A" (sodium alkylbenzenesulphonate) from benzene, the following steps are involved:
I. , /Friedel-Crafts alkylbenzene
II. alkylbenzenesulphonic acid
III. NaOH \rightarrow RCH(CH_3)-C_6H_4-SO_3^-Na^+ ()
These steps should be in sequence
Answer: (A)
Solution
Benzene is first Friedel-Crafts alkylated with the alkene (step I) to give the alkylbenzene, which is then sulphonated with (step II) to give the sulphonic acid, and finally neutralised with
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