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

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

237.

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