Convert chloroform into chloropicrin.

Explanation

i) Preparation of chloroform from ethanol Step I Oxidation of ethanol to acetaldehyde
` underset("Ethyl alcohol ")(CH_3 CH_2 OH +Cl_2 ) to underset("Acetaldehyde ")(CH_3 CHO +2HCl)`
Step II Chlorination of acetaldehyde to chloral
` CH_3 CHO + 3Cl_2 to underet("Chloral")(C Cl_3 CHO + 3HCl)`
Step III Chloral reacts with lime water to give chloroform

Reaction
a) Reaction of chloroform with nitric acid gives chloropicrin as a product.
`underset("Chloroform Nitric acid ")(CHCl_3 + HNO_3 overset("Heat")to underset("Chloropicrin ")( C C l_3 NO_2 +H_2 O )`
b) Reaction of chloroform with silver powder gives acetylene as a product.