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(a) What is meant by a functional group ? Explain with an example.
(b) Write three common functional groups present in organic compounds. Give their symbols/formulae.
(c) Name the functional groups present in the following compounds:
(i) CH_3COOH (ii) CH_3CH_2CHO (iii) C_2H_5OH (iv) CH_3COCH_2CH_3
(d) Name the functional group which always occurs in the middle of a carbon chain.
(e) Draw the struct. ies for the following compounds:
(i) Ethanal
(ii) Propanal
(iii) Butanal

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