An organic compound A reacts with metalic sodium in ether medium to form ethane. A also reacts with magnesium in ether medium to give B, which on hydrolysis gives methane. Identify A and B. Write down the chemical equation involved.

A compound A reacts with thionyl chloride to give compound B. B reacts with magnesium in ether medium to form a Grignard reagent which is treated with acetone and the product on hydrolysis givesIdentify A and B. Write down the chemical equations for the reactions involved.

Copper reacts with nitrate ion NO_3^- in acidic medium to give cupric ions (Cu^(2+)) nitrogen dioxide. Write the balanced ionic equation for the reaction.

When bromoethane is reacted with sodium in the presence of ether an alkane is formed.Give the chemical equation for the above reaction.

A ketone (A) which undergoes halaform reaction gives compound (B) an reduction. (B) on heating with H_2 SO_4 gives (C) which forms monoozonide (D). (D) on hydrolysis in presence of zinc -dust gives only accetaldehyde. Identify (A) (B) and (C). Write the reactions invoived.

An organic compound X on treatment with K_(2)Cr_(2)O_(7) in anhydrous medium gives a compound Y which reacts with I_(2) and sodium carbonate to form triiodomethane. The compound X is