Which of the following carbocations is expected to be most stable?

232.

The main product formed in the following reaction is

• 

• 

• 

• 

The correct order of the basic strength of the following are

• I>II>III>IV

• IV>II>III>I

• III>IV>II>I

• III>II>IV>I

In the reaction,

Which of the following sodium compound/compound (s) are formed when an organic compound containing both nitrogen and sulphur is fused with sodium?

• Cyanide and sulphide

• Thiocyanate

• Sulphite and Cyanide

• Nitrate and sulphide

Which of the following is an example of carbylamine reaction?

• 2Ph NH₂ + CS₂ $\underset{∆ \left(\mathrm{ii}\right) \mathrm{conc}. \mathrm{HCl}}{\overset{\left(\mathrm{i}\right) \mathrm{KOH}}{\to }}$ Ph- NCS

• R - NH₂ + HNO₂ $\stackrel{0 - 5°\mathrm{C}}{\to }$ R - OH + N₂ + HCl

• Ph - NH₂ + CHCl₃ + 3KOH (alc.) $\stackrel{∆}{\to }$ ph - NC + 3KCl + 3H₂O

• Ph₂ - NH + HONO $\to$ Ph₂ - N - N$=$ O + H₂O

C₃H₉N reacts with Hinsberg reagent and the product is insoluble in alkali but soluble in ether. This nitrogen containing compound is

• primary amine

• secondary amine

• tertiary amine

• methyl isocyanide

Which of the following compounds gives carbylamine test?

• N-methyl-o-methyl aniline

• N, N-dimethyl aniline

• 2, 4-diethyl aniline

• p-methyl-N-methyl benzylamine

Which of the following is 3° amine?

• 1-methylcyclohexylamine

• Triethyl amine

• Tert-butylamine

• N-methyl aniline

Which of the following is most basic in nature?

• NH₃

• CH₃NH₂

• (CH₃)₂NH

• C₆H₅N(CH₃)₂