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Aldehydes, Ketones, and Carboxylic Acids — Chemistry STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceChemistryAldehydes, Ketones, and Carboxylic Acids1 Mark
MCQ
The percentage of formaldehyde in formalin is:
  • A
    40%
  • B
    30%
  • C
    20%
  • D
    10%
✓

Answer

  1. 40%

Explanation:

The percentage of formaldehyde in formalin is 40%

10ml formalin contains 40ml formaldehyde and 60ml of water.

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