Describe an activity to form an Ester in a school laboratory.
(class 10 CBSE SAMPLE PAPER 2017-18 SCIENCE)
Answers
Answered by
126
[FIGURE IS IN THE ATTACHMENT]
An activity to form an Ester in a school laboratory:
Take 2 ml of ethanoic acid in a test tube and and 2 ml of pure ethanol (absolute alcohol). Add 2 drops of concentrated sulphuric acid into the test tube. Put this test tube in a beaker in hot water for about 5 minutes on a bunsen flame using a wire gauze. Pour the contents of the test tube into a 250 ml beaker containing 50 ml of water and smell the resulting solution. A sweet odour of ester is obtained .
CH3COOH + C2H5OH ---(Conc. H2SO4)---> CH3COOC2H5 + H2O.
CH3COOH- Ethanoic acid (acetic acid)
C2H5OH- (Ethanol) (Ethyl alcohol)
CH3COOC2H5- Ethyl ethanoate (Ethyl acetate)(sweet smelling Ester)
HOPE THIS WILL HELP YOU.....
An activity to form an Ester in a school laboratory:
Take 2 ml of ethanoic acid in a test tube and and 2 ml of pure ethanol (absolute alcohol). Add 2 drops of concentrated sulphuric acid into the test tube. Put this test tube in a beaker in hot water for about 5 minutes on a bunsen flame using a wire gauze. Pour the contents of the test tube into a 250 ml beaker containing 50 ml of water and smell the resulting solution. A sweet odour of ester is obtained .
CH3COOH + C2H5OH ---(Conc. H2SO4)---> CH3COOC2H5 + H2O.
CH3COOH- Ethanoic acid (acetic acid)
C2H5OH- (Ethanol) (Ethyl alcohol)
CH3COOC2H5- Ethyl ethanoate (Ethyl acetate)(sweet smelling Ester)
HOPE THIS WILL HELP YOU.....
Attachments:
Similar questions