An organic compound ‘A’ having molecular formula `C_4H_8` on treatment with dil. `H_2SO_4` gives B. B on treatment with conc. HCl and anhydrous `ZnCl_2` gives secondary halide C. Write all the reactions and identify A, B and C.

The reaction of HCOOH with conc. H_2SO_4 gives

A compound Z with molecular formula C_3H_9N reacts with C_6H_5SO_2Cl to give a solid, insoluble in alkali. Identify Z.

Write the isomers of the compound having the formula C_4H_9Br

An optically inactive compound (A) having molecular formula C_4H_11N on treatment with HNO_2 gave an alcohol (B). (B) on heating at 440 K gave an alkene (C). (C) on treatment with HBr gave an optically active compound (D)having the molecular formula C_4H_9Br . Identify A, B, C and D and write down their structural formulae. Also write equations involved.

Write the isomers of the compound having formula C_4H_9Br .

Write the reaction of aniline with conc. H_2SO_4 .

Write the isomers of the compound having the formula C_4 H_9 Br .

An optically active compound having molecular formula C_7H_15Br reacts with KOH to give a racemic mixture of products. Write the mechanism involved for this reaction.

Give the empirical formula of C4H8