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CBSE Class 10 Answered

Describe an activity to show the formation of an ester in the school laboratory.
Asked by Topperlearning User | 05 Feb, 2015, 02:01: PM
answered-by-expert Expert Answer

Aim - To show the formation of ester.

Requirements- test tube, beaker, burner, alcohol, acetic acid, conc. H2SO4

Theory:

begin mathsize 12px style CH subscript 3 COOH space plus space straight C subscript 2 straight H subscript 5 OH space rightwards arrow with straight H subscript 2 SO subscript 4 on top space CH subscript 3 COOC subscript 2 straight H subscript 5 space plus space straight H subscript 2 straight O end style

Procedure

(a) A test tube was taken in which ethanol and ethanoic acid was taken.

(b) To this, Conc. H2SO4 is added.

(c)The test tube is kept in a beaker containing water.

Observation: A fruity smell comes out.

Result: Ester is formed

Precautions:

(a) Direct heating is avoided.

(b) Only a few drop of conc. H2SO4 should be added.

Answered by | 05 Feb, 2015, 04:01: PM

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