Why is chloroform stored in dark-coloured bottles?

Ethyl acetate is obtained when methyl magnesium iodide reacts with

What happens when $CCl_4$ is treated with $AgNO_3$?

What is the correct decreasing order of the relative rate of solvolysis for the following alkyl halides in formic acid containing a small amount of water?
$(I) \ CH_2=CH-CH_2Cl$
$(II) \ CH_2=CH-CH(CH_3)Cl$
$(III) \ CH_2=C(CH_3)CH_2Cl$
$(IV) \ CH_3CH=CH-CH_2Cl$

Identify the products of the given reactions.

Will $CCl_4$ give a white precipitate of $AgCl$ on heating it with silver nitrate? Give a reason for your answer.