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Give Simple Chemical Tests to Distinguish Between the Following Pairs of Compounds. Benzoic Acid and Ethyl Benzoate - Chemistry

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

Benzoic acid and Ethyl benzoate

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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 Class 12 Chemistry Textbook
Chapter 12 Aldehydes, Ketones and Carboxylic Acids
Q 13.4 | Page 378
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