Test: Study of Nitrogen Functional Group - NEET MCQ

o-Toluidine (ortho-toluidine) is an organic compound with the chemical formula CH₃C₆H₄NH₂. It is the most important of the three isomeric toluidines. 

Acrylonitrile is an organic compound with the formula CH₂CHCN. It is a colorless volatile liquid, although commercial samples can be yellow due to impurities.

Ambident groups are those which can attack from both sides. So option a is correct because cyanides is C-N and carbon forms bonds here. Isocyanides are N-C in which nitrogen contains lone pairs which initiates reaction and attaches from nitrogen side.

THe IUPAC name of p-bromoaniline is 4-bromoaniline. Carbon attached with NH₂ acts  as first position and then numbering is done.

The reaction is a Mendius reaction as because in this reaction the organic nitrile is reduced by nascent hydrogen(from sodium in ethanol) to a primary amine. (RCN+2H2=RCH2NH2).
where as LiAlH4 is a strong reducing agent and can be used as an abstract source of H neucophile.

The IUPAC name of tertiary methyl amine is N,N-Dimethyl-methanamine.

-NH₂ group.

Carbyl amine reaction is given by aliphatic and aromatic primary amines.

An isocyanide (also called isonitrile or carbylamine) is an organic compound with the functional group -N≡C. It is the isomer of the related cyanide (-C≡N), hence the prefix is isocyano. The organic fragment is connected to the isocyanide group via the nitrogen atom, not via the carbon.

In the structure two phenyl groups are attached to the amino group, hence the name Diphenyl amine.

CH3 is a electron donating group and benzene is a electron withdrawing group so option A and B are easily eliminated. Among C and D the +I effect of CH3 dominates over the stearic hindrance factor so D is most basic.

Amines that have one of their three hydrogen atoms replaced by an alkyl or aromatic substituent are referred to as primary amines. 

The correct answer is option A

The IUPAC name for the given compound is 
N-Methylethanamine
 

Basicity of amines is due to availability of an unshared pair (lone pair) of electrons on nitrogen. This lone pair of electrons is available for the formation of a new bond with a proton or Lewis acid. Pyridine is less basic than triethylamine because lone pair of nitrogen in pyridine is delocalised.

If two hydrogen of ammonia are replaced by alkyl group then it forms secondary amine.

Trimethylamine is a base, like ammonia. Also like ammonia, it has a trigonal pyramidal structure. The C-N-C bond angle is 110.9°, compared with 107.2° in NH3, presumably due to greater repulsions between the methyl groups.

According to IUPAC nomenclature, alkyl cyanides are called alkane-nitriles and  benzyl cyanides are called benzonitrile.

NH₂CH₂CH₂ CH₂   COOH  is  4-Aminobutanoic acid , here carboxy group gets preferred over amino group as a main chain.  

Hybridisation of N in amine is sp³  with nitrogen having a one pair and 3 bond pair. Remember that amine is RR’R”N where R, R’ and R” may be alkyl or hydrogen.