Which of the following statements is true for the carbonyl group?

  • A
    Carbon atom is $sp^3$ hybridised
  • B
    Carbon atom forms three sigma bonds
  • C
    $C-C-O$ bond angle is $90^{\circ}$
  • D
    The carbonyl bond is weaker as compared to the double bond in alkene

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Carbonyl compounds are usually

Write the $IUPAC$ names of the following ketones and aldehydes. Wherever possible,give also common names.
$(i)$ $CH_{3}CO(CH_{2})_{6}CH_{3}$
$(ii)$ $CH_{3}CH_{2}CHBrCH_{2}CH(CH_{3})CHO$
$(iii)$ $CH_{3}(CH_{2})_{5}CHO$
$(iv)$ $Ph-CH=CH-CHO$
$(v)$ Cyclopentane ring attached to $-CHO$ group
$(vi)$ $PhCOPh$

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Formalin is an aqueous solution of which of the following?

Explain: The carbonyl group is polar and possesses electrophilic and nucleophilic centers.

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Which of the following compounds does not contain an $-OH$ group?

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