NCERT Exemplar X — task. Science CBSE, Class 10.

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Multiple Choice Questions:

1. The name of the compound \(CH_3-CH_2- CHO\) is

Ethanol
Propanone
Propanal
Ethanal

2. The heteroatoms present in \(CH_3-CH_2-O-CH_2-CH_2Cl\) are
(i) oxygen
(ii) carbon
(iii) hydrogen
(iv) chlorine

(ii) and (iii)
(iii) and (iv)
(i) and (ii)
(i) and (iv)

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