Question

Formula for tear gas is
A. `COCl_(2)`
B. `C Cl_(3)NO_(2)`
C. `N_(2)O`
D. None of these

Answer 1

Correct Answer - B
`CHCl_(3)` (chloroform) react with conc. `HNO_(3)` on heating to form chloropicrin `(C Cl_(3)NO_(2)`
`CHCl_(3) + HONO_(2) rarr underset("Chloropicrin")(C Cl_(3). NO_(2) + H_(2)O)`
Chloropicrin is used as an insecticide and also war gas. It is also known as nitrochloroform or tear gas