$B.H.C.$ is used as

Which of the following is true about freons?

Which of the following is an anaesthetic?

Write the uses of $Freon$.

Major product obtained on reaction between chlorobenzene and chloral taken in $2:1$ ratio in acidic condition is

State the various uses of :
$(i)$ Dichloromethane (Methylene chloride)
$(ii)$ Trichloromethane (Chloroform)
$(iii)$ Tri-iodomethane (Iodoform)
$(iv)$ Tetrachloromethane (Carbon tetrachloride)
$(v)$ Freons