Question
Define a functional group and give the structural formula of the following functional group:
(a) Ketons
(b) Alcohols\
(c) Aldehydes
(a) Ketons
(b) Alcohols\
(c) Aldehydes



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| S.NO. | Substance added | Gas evolved | Odour |
| 1 | Calcium carbonate | _________ | _________ |
| 2 | Magnesium ribbon | _________ | _________ |
| 3 | Manganese (IV) oxide with heating | _________ | _________ |
| 4 | Sodium sulphide | _________ | _________ |