Question

Pick out the correct statement about carbamates from the following.

(a) They are less harmful to human life

(b) They offer excellent insect-resistance

(c) They are less persistent

(d) They are non-biodegradable

The question was posed to me in an interview for internship.

I want to ask this question from Environmental Chemistry topic in portion Environmental Chemistry of Chemistry – Class 11

Answer 1

The correct answer is (c) They are less persistent

The best explanation: Carbamates are less persistent and more biodegradable products. They were introduced in response to high persistence of chlorinated organic toxins. But these chemicals are severe nerve toxins and hence more harmful to humans. Insects have become resistant to these insecticides also.