Question

Amines are almost colourless but develop colour on keeping in the air for a long time, because:

• A. they are readily oxidised in air to form coloured oxidation product.
• B. they react with oxygen present in air in very less amount.
• C. they regain color in presence of air.
• D. none of these

Answer 1

The correct option is A they are readily oxidised in air to form coloured oxidation product.

(1). Amines are basic compound.

(2) They are colourless but develop colour on keeping in the air for a long time because they react readily air and get oxidised.