An alkylhalide (A), on reaction with Mg in dry ether followed by treatment with ethanol gave 2-methylbutane. Write all the possible structures of 'A'. Give arrow-head equation for the formation of 2-methly-butane from any one isomer of `A`

On reaction with the following compounds, sodium cyanide gives sodium dicyanidoargentate (I). Write the balanced chemical equation for any one of the following : (1) Ag_(2)S (2) AgCl.

An organic compound A (molecular formula C_2H_4O) on reaction with excess formaldehyde in presence of Ca(OH)_2 provides B (molecular formula C_4H_(12)O_4) . A on reaction with AI(Oet)_3 gives C (molecular formula C_4H_8O_2) .Both A and C on treatment with LiAIH_4 in dry ether furnish the same compound D (molecular) formula C_2H_6O ). A on reaction with ammoniacal AgNO_3 gives E (molecular formula C_2H_7NO_2 ). Reaction of A with D in presenece of dry HCI provides F (molecular formula C_6H_(14)O_2 ). Write down the structures of A to F along with the arrow head equation for the above reactions.

A certain salt X, gives the following result. When conc. H_2SO_4 is added to a hot solution of X, white crystal of a acid Z separates out. Write equation for all the above reactions and identify X, Y and Z.

An alkane (A) C_(16)H_(16) on ozonolysisi gives only one products (B) C_(8)H_(8)O . Compound (B) on reaction with NaOH//I_(2) yields sodium benzoate. Compound (B) reacts with KOH//NH_(2)NH_(2) yielding a nitrogen (C) C_(8) H(10)^(.) Write the structures of compounds (B) and (C). Based on this information two their structures and identify the isomer which on catalytic hydrogenation (H_(2)//Pd-C) gives a racemic mixture.

Primary alkyl halide C_(4)H_(9)Br (A) reacted with alcoholic KOH to give compound (B). Compound (B) is reacted with HBr to give (C) which is an isomer of (A). When (A) is reacted with sodium metal it gives compound (D), C_(8)H_(18) which is different from the compound formed when n-butyl bromide is reacted with sodium. Give the structural formula of (A) and write the equations for all the reactions.