MEDIUMMCQ SINGLENEET ChemistryOrganic ChemistryAldehydes and ketonesCarbonyl Compounds-Introduction

Formalin is an aqueous solution of :

A.formic acid
B.fluorescein
C.formaldehyde✓ Correct
D.furfuraldehyde
Explanation

Aldehydes can be dissolved in water to make an aqueous solution. One such important solution is formalin which is the aqueous solution of formaldehyde, specifically 40% aqueous solution of formaldehyde. Or we can say that in 100 ml of solution 40 ml is formaldehyde and 60 ml is water.

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