Q2 of 48 Page 230

Write properties of methanal.

1. Methanal is a colourless, poisonous gas. Its boiling point is 253 K. It is soluble in water.

2. Methanoic acid is formed by the oxidation of methanal in presence of oxidising agent.


HCHO HCOOH


3. Methanol is formed by reduction of methanal.


HCHO + H2CH3OH


4. On addition of HCN to methanal then methanal cyanohydrin is formed.


H-CHO + H-CN → H-CHOH-CN


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