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MDCAT
Chemistry
2016

Chemistry · Aldehydes and Ketones

Work through this past-paper style MCQ, then read the full explanation. Practice more chemistry questions on mMCQ with adaptive practice and topic analytics.

Question

Which one of the following is the IUPAC name of the structure given below?

MDCAT Chemistry question — Aldehydes and Ketones
Options
  • A

    Propionaldehyde

  • B

    Methanone

  • C

    Acetaldehyde

  • D

    Methanal

Explanation

Methanal/formaldehyde is a naturally occurring organic compound with the formula CH₂O and structure H−CHO. 

Propionaldehyde or propanal is an organic compound with the formula CH3CH2CHO. It is a 3-carbon aldehyde.

Methanone cannot exist as it cannot have a secondary carbonyl group; thus, propanone is the first in the ketone series.

Acetaldehyde is an organic chemical compound with the formula CH3CHO.

Methanal/formaldehyde is a naturally occurring organic compound with the formula CH₂O and structure H−CHO.

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Tagged under Chemistry · Aldehydes and Ketones · 2016