Which of the following reagents may be used to distinguish between phenol and benzoic acid? |
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a) |
Aqueous NaOH |
b) |
Tollen’s reagent |
c) |
Molisch reagent |
d) |
Neutral |
Which of the following reagents may be used to distinguish between phenol and benzoic acid? |
|||||||
a) |
Aqueous NaOH |
b) |
Tollen’s reagent |
c) |
Molisch reagent |
d) |
Neutral |
(d)
|
Reagent |
Phenol |
Benzoic acid |
Conclusion |
A |
Aqueous NaOH |
Salt formation |
Salt formation |
No specific colour change |
B |
Neutural |
Violet colour |
Buff-coloured precipitate |
Thus, can be used to make distinction |