Explain the preparation of the following compounds: (i) DDT (ii) Chloroform (ii) Biphenyl (iv) Chloropicrin (v)Freon-12

Explain the preparation of the following compounds: (i) DDT (ii) Chlo

1.	Explain the preparation of the following compounds: (i) DDT (ii) Chloroform (ii) Biphenyl (iv) Chloropicrin (v)Freon-12
Answer» Solution :(i) DDT (ii) Chloroform: (a) `underset("Ethanol")(CH_3 - CH_2OH) + Cl_2 to underset("Acetaldehyde")(CH_3CHO) + 2HCL` (b) `underset("Acetaldehyde")(CH_3CHO) + 3Cl_2 to underset(("Chloral"))underset("Trichloroacetaldehyde")(C Cl_3 CHO) + 3HCl` (c ) `underset("Chloral")(C Cl_3 CHO) + Ca(OH)_2 to underset("Chloroform")(2CHCl_3) + underset("Calcium formate")((HCOO)_2Ca)` (iii) Biphenyl: Fittig reaction : `C_6H_5Cl + 2Na + ClC_6H_5 to underset("Biphenyl")(C_6H_5-C_6H_5) + 2NaCl` (IV) Chloropicrin. `underset("Chloroform")(CHCl_3) + underset("Nitric ACID")(HNO_3) to underset("Chloropicrin")(C Cl_3 NO_2) + H_2O` (v) Freon - 12. `C Cl_4 + 2HF overset(SbCl_2)to underset("Freon - 12")(C Cl_2F_2) + 2HCl`