651.

The correct order of N-compounds in its decreasing order of oxidation states is

• HNO₃, NH₄Cl, NO, N₂

• HNO₃, NO,NH₄Cl, N₂

• HNO₃, NO, N₂, NH₄Cl

• NH₄Cl, N₂, NO, HNO₃

Which of the following compounds can form a zwitter ion?

• Aniline

• Acetanilide

• Glycine

• Benzoic acid

Nitration of aniline in strong acidic medium also gives m-nitroaniline because

• Inspite of substituents nitro group always goes to only m-position.

• In electrophilic substitution reactions amino group is meta directive.

• In acidic (strong) medium aniline is present as anilinium ion.

• In absence of substituents nitro group always goes to m-position.

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

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