91Ó°ÊÓ

Which one of the following methods is neither meant for the synthesis nor for separation of amines? (a) Hinsberg method (b) Hoffmann method (c) Wurtz reaction (d) Curtius reaction

An organic compound having molecular mass 60 is found to contain \(\mathrm{C}=20 \%, \mathrm{H}=6.67 \%\) and \(\mathrm{N}=\) \(46.67 \%\) while rest is oxygen. On heating, it gives \(\mathrm{NH}_{3}\) along with a solid residue. The solid residue gives violet colour with alkaline copper sulphate solution. The compound is (a) \(\mathrm{CH}_{3} \mathrm{NCO}\) (b) \(\mathrm{CH}_{3} \mathrm{CONH}_{2}\) (c) \(\left(\mathrm{NH}_{2}\right)_{2} \mathrm{CO}\) (d) \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CONH}_{2}\)

Which of the following is the strongest base in Aqueous solution? (a) Trimethylamine (b) Aniline (c) Dimethylamine (d) Methyl amine

\(\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{NH}_{2}+\mathrm{CHCl}_{3}+3 \mathrm{KOH}\) \(\mathrm{A}+\mathrm{B}+3 \mathrm{H}_{2} \mathrm{O}\) Here compound \(\mathrm{A}\) and \(\mathrm{B}\) are respectively? (a) \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{CN}\) and \(3 \mathrm{KCl}\) (b) \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CONH}_{2}\) and \(\mathrm{KCl}\) (c) \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{NC}\) and \(3 \mathrm{~K} \mathrm{Cl}\) (d) \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{NC}\) and \(\mathrm{K}_{2} \mathrm{CO}_{3}\)

Toluene is nitrated and resulting product is reduced with \(\mathrm{Sn} / \mathrm{HCl}\). The product is now diazotised and then heated with cuprous bromide. The reaction mixture so formed contains. (a) mixture of o, p bromo benzene (b) mixture of o, p bromo aniline (c) mixture of o, m bromo toluene (d) mixture of o, p bromo toluene