What is chloropicrin? How is it obtained? Mention its uses.

1.	What is chloropicrin? How is it obtained? Mention its uses.
Answer» Solution :(i) Chloropicrin is `C Cl_3 NO_2`. (II) Chloroform reacts with NITRIC acid to form chloropicrin (trichloro-nitromethane): `UNDERSET("Chloroform")(CHCl_3) + HNO_3 overset(Delta)to underset("Chloropierin")(C Cl_3 NO_2) + H_2O` (iii) Chloropicrin is used as an insecticide and soil sterilising AGENT.

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