1. Tardigrade
  2. Question
  3. Chemistry
  4. How many of the following statement(s) is/are correct? (A) o-phenolsulphonic acid can be converted into p-phenolsulphonic acid in the presence of H 2 SO 4 if temperature is increased. (B) Phenol is more acidic than benzyl alcohol (C) Phenoxide ion activates the ring less in comparison to phenol (D) Bromination of phenol in aqueous medium produces 2-bromophenol and 4-bromophenol.

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Q. How many of the following statement(s) is/are correct?
(A) $o$-phenolsulphonic acid can be converted into $p$-phenolsulphonic acid in the presence of $H _{2} SO _{4}$ if temperature is increased.
(B) Phenol is more acidic than benzyl alcohol
(C) Phenoxide ion activates the ring less in comparison to phenol
(D) Bromination of phenol in aqueous medium produces $2$-bromophenol and $4$-bromophenol.

Alcohols Phenols and Ethers

Solution:

(A) Since $p$-phenolsulphonic acid has more thermal stability than $o$-phenolsulphonic acid and hence latter can be converted into former on heating.
(B) Phenol is more acidic than benzyl alcohol because phenoxide ion is more stable than benzyl alkoxide ion.