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Carbon and its Compounds — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceCarbon and its Compounds1 Mark
Question
Which functional group can be detected by using sodium hydrogen carbonate test?
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Answer

Carboxylic acid (-COOH) can be detected by using sodium hydrogen carbonate. Carboxylic acids reacts with sodium hydrogen carbonate to produce carbon dioxide gas which can be seen in the form of a brisk effervescence.$\text{RCOOH}+\text{NaHCO}_3\rightarrow \text{RCOONa}+\text{CO}_2(\text{g})+\text{H}_2\text{O} \\ \ \text{Carboxylic} \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{Brisk} \\ \ \ \text{acid} \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{effervescence}$

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