Primary alkyl halide C_4 H_9 Br (a) reacted with alcoholic K O H to give compound (b). Compound (b) is reacted with HBr to give (c) which is an isomer of (a). When (a) is reacted with sodtum 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.

Dehydration of FIGURE give a compound which exists in two isomeric forms. Give the structure of both the isomers?

An organic compound A gives positive Liebermann reaction and on treatment with CHCl₃/KOH followed by hydrolysis gives (B) and (C). Compound (B) gives colour with schiffs reagent but not (C), which is steam volatile. (C) on treatment with LiAlH₄ gives D, C₇ H₈ O₂ which on oxidation gives E. Compound E reacts with (CH₃CO)₂O/CH₃COOH to give a pain relléver F. Give structures of A to F with proper reasoning?

Compound A is treated with ethanolic NaCN to give the compound C_2H_5CN (B) compound B on reduction gives compound C. identify compounds A and C.

Compounds A and B are isomers with formula C_2 H_4 Cl_2 . On treatment with aq. KOH, A gives a compound C which liberates ' H_2' gas on treatment with Na metal, B on treatment with aq.NaOH produces D which answers iodoform test. Give the structures of A,B,C and D and write the chemistry of reactions.

Give the functional isomers of C_3 H_9 ~N

Compound (A) with empirical formula 'fC, fH_9 fN' on diazotisation gives a product which undergoes Sandmeyer reaction with 'Cu_2 Cl_2' and 'HCl' to give a compound (B). (B) on oxidation gives a compound (C) which when heated with sodalime gives chlorobenzene. Give the structural formula of (A) (B) and (C) and explain the reactions involved.

An alkyne having molecular mass x xx 10 (A) is treated with Lindlar's catalyst and H_(2) to give a compound (B). (B) reacts with HCl to give a compound ( C). When ( C) reacts with metallic sodium in presence of ether it gives (D). The molecular mass of (D) is 86. What is the value of x?