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Q.
$BHC$ and $DDT$ belong to which class of pesticides?
Chhattisgarh PMTChhattisgarh PMT 2005
Solution:
$BHC \left(\right.$ Benzene hexachloride- $\left.C _{6} H _{6} Cl _{6}\right)$ and $DDT$ (Dichlorodiphenyl trichloroethane $C _{14} H _{9} Cl _{5}$ ) are chemical pesticides, which are classified in organochlorines. These are basically organic compounds that have been chlorinated. Organochlorines are lipophilic and show much affinity for fatty tissue of animals. $DDT$ and $BHC$ are both toxic, but $BHC$ is more toxic to insect than $DDT$ and used mainly in public health programmes.