IGCSE Chemistry 0620/21/O/N/21 Q35

Question

35 Which molecule contains only single covalent bonds?

A propane
B propanoic acid
C propene
D propyl propanoate

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Answer ( 1 )

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    2022-05-12T22:29:46+08:00

    Propane: CH3CH2CH3

    Propanoic acid: CH3CH2COOH (double covalent bond at -COOH)

    Propene: CH3CH=CH2 (double covalent bond at CH=CH2)

    Propyl propanoate: CH3CH2COOCH2CH2CH3 (double covalent bond at -COO-)

    Ans: A

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