An alkyl halide X of formula of `C_6H_13Cl` on treatment with potassium tertiary butoxide gives two isomeric alkenes Y and Z `(C_6H_(12))` Both alkenes on hydrogenation gives 2, 3-dimethyl butane. Predict structure of X, Y and Z.

Give all the structural formulae possible for the alkene with formula C_4H_8 . Mention the stability order of these alkenes.

An organic compound E(C_5H_8) on hydrogenation gives compound F(C_5H_12) compound E on ozonolysis gives formaldehyde and 2-keto propanal deduce the structure of compound E

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.

Ozonolysis of an alkene leads to the formation of an aldehyde and an isomeric ketone having melecular formula, C_3H_6O . Identify the alkene.