x. Acetic acid is prepared from methyl magnesium bromide and dry ice in presence of dry ether. Name the compound which serves not only reagent but also as cooling agent in the reaction.
ii. What is the action of the following reagents on toluene ? a. Alkaline KMnO4 , dil. HCl and heat b. CrO2Cl2 in CS2 c. Acetyl chloride in presence of anhydrous AlCl3.