Select the molecule in which all the atoms may lie on a single plane is

• Correct answer
  A

  4-Nitrobenzaldehyde
• B

  4-Methoxybenzaldehyde
• C

  4-Methylnitrobenzene
• D

  4-Nitroacetophenone

Solution

Hint :
All atoms other than Hydrogen are \(\mathrm{sp}^2\) hybridised.

Hence, the correct answer is option: 'A'.