1.

Identify the binary mixture(s) that can be separated into individual compounds by differential extraction, as shown in the given scheme.

Answer»

`C_(6)H_(5)OH` and `C_(6)H_(5)COOH`
`C_(6)H_(5)COOH` and `C_(6)H_(5)CH_(2)OH`
`C_(6)H_(5)CH_(@)OH` and `C_(6)H_(5)OH`
`C_(6)H_(5)CH_(2)OH` and `C_(6)H_(5)CH_(2)COOH`.

Solution :(a) `C_(6)H_(5)OH` and `C_(6)H_(5)COOH` cannot be separated by `NaOH (AQ)`. Therefore, this option is not possible.
(b) `C_(6)H_(5)COOH` REACTS with both `NaOH (aq)` and `NaHCO_(3) (aq)` whereas `C_(6)H_(5)CH_(2)OH` does not. This option is possible.
(c) `C_(6)H_(5)CH_(2)OH` and `C_(6)H_(5)OH` both do not react with `NaHCO_(3) (aq)`. therefore, this option is not possible.
(d) `C_(6)H_(5)CH_(2)COOH` reacts with both `NaHCO_(3) (aq)` and `NaOH (aq)` whereas `C_(6)H_(5)CH_(2)OH` does not. Therefore, this option is possible.


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