MCQ
Phenol and benzoic acid is distinguished by
- A$NaOH$
- ✓$NaHC{O_3}$
- C$N{a_2}C{O_3}$
- D${H_2}S{O_4}$
Phenols are very weak acids. They do not react with weak bases such as sodium hydrogen carbonate.
Benzoic acid is a strong acid. It reacts with sodium hydrogen carbonate to give effervescence of carbon dioxide gas.
$C _6 H _5 OH + NaHCO _3 \rightarrow$ no reaction
$PhCOOH + NaHCO _3 \rightarrow PhCOONa + H _2 O + CO _2 \uparrow$
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