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Give Simple Chemical Tests to Distinguish Between the Following Pairs of Compounds. Benzoic Acid and Ethyl Benzoate - CBSE (Science) Class 12 - Chemistry

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Question

Give simple chemical tests to distinguish between the following pairs of compounds.

Benzoic acid and Ethyl benzoate

Solution

Benzoic acid and Ethyl benzoate can be distinguished by sodium bicarbonate test.

Sodium bicarbonate test:

Acids react with NaHCO3 to produce brisk effervescence due to the evolution of CO2 gas.

Benzoic acid being an acid responds to this test, but ethylbenzoate does not.

`C_6H_5COOH + NaHCO_3 -> C_6H_5COONa + CO_2 uarr + H_2O`

Benzoic acid                                   Sodium benzoate

`C_6H_5COOC_2H_5 + NaHCO_3 ->` No effervescence due to evolution of CO2 gas

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 NCERT Solution for Chemistry Textbook for Class 12 (2018 to Current)
Chapter 12: Aldehydes, Ketones and Carboxylic Acids
Q: 13.4 | Page no. 378
Solution Give Simple Chemical Tests to Distinguish Between the Following Pairs of Compounds. Benzoic Acid and Ethyl Benzoate Concept: Aldehydes and Ketones - Chemical Reactions of Aldehydes and Ketones - Oxidation.
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