In the following sequence of reactions

C₂H₅Br $\stackrel{\mathrm{AgCN}}{\to } \mathrm{X} \stackrel{\mathrm{Reduction} }{\to } \mathrm{Y}; \mathrm{Y} \mathrm{is}$

• n-propyl amine

• isopropylamine

• ethylamine

• ethylmethyl amine

172.

The number of σ and π bonds in a molecule of acetonitrile are respectively :

• 2,5

• 3,4

• 4,3

• 5,2

Name of method use to separate primary, secondary and tertiary amines is

• Hofmann method

• Lucas method

• Victor Meyer method

• Kolbe method

An organic amino compound reacts with aqueous nitrous acid at low temperature to produce an oily nitroso amine. The compound is

• CH₃NH₂

• CH₃CH₂NH₂

• CH₃CH₂NHCH₂CH₃

• (CH₃CH₂)₃N

Which of the following will have larger dipole moment?

Which of the following is not a usual method for the preparation of primary amines ?

• Hofmann's method

• Gabriel phthalimide reaction

• Curtius method

• Reductive amination of >C=O

What is the product when nitrobenzene is treated sequentially with (i) NH₄Cl/Zn dust and (ii) H₂SO₄/ Na₂Cr₂O₇ ?

• m-chloronitrobenzene

• p-chloronitrobenzene

• nitrosobenzene

• benzene

The following species generates a highly stable radical on exposure to 100 W bulb light. Which one of the following represents this stable radical?

• Me₂$\stackrel{°}{\mathrm{C}}$(CN)

• $\stackrel{°}{\mathrm{C}}$H₃

• $\stackrel{°}{\mathrm{C}}\mathrm{N}$

• Me₂C(CN)N=$\stackrel{°}{\mathrm{C}}$

Which of the following nitro compounds are not soluble in NaOH?

• (CH₃)₃C-NO₂

• (CH₃)₂CH-NO₂

• CH₃CH₂-NO₂

• Ph-CH₂-NO₂

The reaction,

R-CO-R $\underset{{\mathrm{H}}_2{\mathrm{SO}}_4}{\overset{{\mathrm{N}}_3\mathrm{H}}{\to }}$ RCONHR + N₂ is called

• Claisen-Schmidt reaction

• Kolbe-Schmidt reaction

• Schmidt reaction

• Kolbe's reaction