Q26 of 60 Page 28

The name of the compound CH3 — CH2 — CHO is

The functional group – CHO is used with the compounds ending with suffix ‘al’.


Propanal (also known as propionaldehyde) is an organic compound with the formula CH3CH2CHO. It is a saturated 3-carbon aldehyde. It is also a structural isomer of acetone. It is colourless liquid with a fruity smell.

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24

Which among the following are unsaturated hydrocarbons?

 25

Which of the following does not belong to the same homologous series?

 27

The heteroatoms present in CH3 — CH2 — O — CH2 — CH2Cl are

(i) oxygen


(ii) carbon


(iii) hydrogen


(iv) chlorine

 28

Which of the following represents saponification reaction?