Q2 of 56 Page 1

What is meant by a biodegradable waste?

. Biodegradable wastes are those which can be degraded or break down with the help of biological processes or organisms such as bacteria and fungi. The examples of biodegradable waste are: peels of fruits , dung of cattles.


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18

write chemical equations to show what happens when

(i) ethanol is heated with concentrated sulphuric acid at 443 K.


(ii) ethanol reacts with ethanoic acid in the presence of an acid acting as a catalyst.


(iii) an ester reacts with a base.

 1

Name any two decomposers operation in our environment.

 3

Draw the structure of the hexanal molecule, .

 4

Name the type of particles which act as prisms in the formation of rainbow in the sky.