Discussion
Match the following :
| List I | List II |
|---|---|
| (a) Alethrin | (i) Organochlorines |
| (b) Chlorthion | (ii) Pyrethrin |
| (c) Aldicarb | (iii) Organophosphorus |
| (d) Endrin | (iv) Carbamate |
Codes :
Answer: C
The correct matching is (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i).
- Allethrin (written 'Alethrin') is a synthetic pyrethroid, a pyrethrin-type insecticide (a-ii).
- Chlorthion is an organophosphorus insecticide (b-iii).
- Aldicarb is a carbamate insecticide (c-iv).
- Endrin is an organochlorine of the cyclodiene group, like aldrin and dieldrin (d-i).
Options A, B and D place one or more of these in the wrong chemical class, for example treating endrin as a carbamate or allethrin as an organochlorine.
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