CBSE Questions for Class 12 Engineering Chemistry Amines Quiz 8 - MCQExams.com

The basicity order of I,III,II and III is
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  • III>I>II
  • I>II>III
  • III>II>I
  • II>III>I
Consider the following compounds, What is the correct order of basicity of the above compounds?
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  • I>II>IIl
  • III>I>II
  • III>II>I
  • I>III>II
Which of the following is least basic?
  • Aniline
  • pMethylaniline
  • Diphenylamine
  • Triphenylamine
The correct order of basicities of the following compounds is 
1764011_d5a2d456103e43bbb95b84536cfe3606.PNG
  • 2>1>3>4
  • 1>3>2>4
  • 3>1>2>4
  • 1>2>3>4
Which of the following compound is the strongest base?
  • Ammonia
  • Aniline
  • Methylamine
  • N-methyl aniline
The order of basic strength among the following amines in benzene solution is 
  • CH3NH2>(CH3)3N>(CH3)2NH
  • (CH3)2NH>CH3NH2>(CH3)3N
  • CH3NH2>(CH3)2NH>(CH3)3N
  • (CH3)3N>CH3NH2>(CH3)2NH
Order of basicity of ethyl amines in aqueous medium is 
  • Secondry>primary>Tertiary
  • primary>Secondry>Tertiary
  • Secondry>Tertiary>primary
  • Tertiary>primary>Secondry
Which of the following is 10 amine
  • Ethylene diamine
  • Dimethyl amine
  • Trimethyl amine
  • N-methyl aniline
Gabriel's phthalimide synthesis is used for the preperation of 
  • primary aromatic amine
  • Secondary acid
  • Primary aliphatic amine
  • Tertiary amine
Which of the following compound is expected to be most basic 
  • Aniline
  • Methylamine
  • Hydroxylamine
  • Ethylamine
Compounds containing both amino and COOH groups are known as
  • Diamines
  • unknown
  • Amino acids
  • Enzymes
The strongest base among the following is 
Correct the order of increasing basicity is 
  • NH3<C6H5NH2<(C2H5)2NH<C2H5NH2<(C2H5)3N
  • C6H5NH2<NH3<(C2H5)3N<(C2H5)2NH<C2H5NH2
  • C6H5NH2<NH3<C2H5NH2<(C2H5)3N<(C2H5)2NH
  • C6H5NH2<(C2H5)3N<NH3<C2H5NH2<(C2H5)2NH
By the presence of a halogen atom in the ring, basic properties of aniline is 
  • Increased
  • Decreased
  • unchanged
  • Doubled
Which of the following is most basic
  • C6H5NH2
  • (CH3)2NH
  • (CH3)3N
  • NH3
Which one of the following is not a base
  • N2H4
  • N2OH
  • (CH3)3N
  • NH3
Which of the following amines would undergoes diazotisation
  • Primary aliphatic amines
  • Primary aromatics amines
  • Both (a) and (b)
  • None of these
If methyl is alkyl group, then which order of basicity is correct
  • R2NH>RNH2>R3N>NH3
  • R2NH>R3N>RNH2>NH3
  • RNH2>NH3>R2NH>R3N
  • NH3>RNH2>R2NH>R3N
Which one less of alkaline
  • All of these
The decreasing order of the  basic character of the three amines and ammonia is 
  • NH3>CH3NH2>C2H5NH2>C6H5NH2
  • C2H5NH2>CH3NH2>NH3>C6H5NH2
  • C6H5NH2>C2H5NH2>CH3NH2>NH3
  • CH3NH2>C2H5NH2>C6H5NH2>NH3
Among the following compounds nitrobenzene , benzene, aniline and phenol, the strongest basic behaviuor  in acid medium is exhibited by :
  • Phenol
  • Aniline
  • Nitrobenzene
  • Benzene
Among the following the weakest base is 
  • C6H5CH2NH2
  • C6H5CH2NHCH3
  • O2NCH2NH2
  • CH3NHCHO
Arrange the following in increasing order of basicity 
CH3NH2,(CH3)2NH,C6H5NH2,(CH3)3N
  • (CH3)3N<(CH3)2NH<CH3NH2<C6H5NH2
  • (CH3)3N>(CH3)2NH>CH3NH2>C6H5NH2
  • C6H5NH2<(CH3)3N<CH3NH2<(CH3)2NH
  • C6H5NH2>(CH3)3N>CH3NH2>(CH3)2NH
Decreasing order of basicity is 
(1) CH3CONH2
(2)CH3CH2NH2
(3) PhCH2CONH2
  • 1>2>3
  • 2>1>3
  • 3>2>1
  • None of these
In the diazotisation of aniline with sodium nitrite and hdrochloric acid, an excess of hydrochloric acid is used primarily to
  • Suppress the concentration of free aniline available for coupling
  • Suppress hydrolysis of phenol
  • Insure a stoichiometric amount of nitrous acid
  • Neutralize the base liberated
Complete the following reaction
RNH2+H2SO4
  • [RNH3]+HSO4
  • [RNH3]+2SO24
  • RNH2.H2SO4
  • No reaction
Azo dye is prepared by the coupling of pehnol and :
  • Diazonium chloride
  • o-nitro aniline
  • Benzoic acid
  • Chlorobenzene
Which one of the following compound is most basic
1765302_eea66197db3646bc84153fe903f8bead.PNG
  • (A)
  • (B)
  • (C)
  • All are equally basic
The correct order of increasing basic nature for the bases NH3,CH3NH2 and (CH3)2NH is 
  • CH3NH2<NH3<(CH3)2NH
  • (CH3)2NH<NH3<CH3NH2
  • NH3<CH3NH2<(CH3)2NH
  • CH3NH2<(CH3)2NH<NH3
The correct order of basicity of amines in water is 
  • (CH3)2NH>(CH3)3N>CH3NH2
  • CH3NH2>(CH3)2NH>(CH3)3N
  • (CH3)3N>(CH3)2NH>CH3NH2
  • (CH3)3N>CH3NH2>(CH3)2NH
Which of the following is/are correct?
  • PhOH has a higher boiling point than PhSH (benzenthiol).
  • pHydroquinone has a higher melting point than catechol.
  • oNitrophenol has a lower boiling point than m and pisomers.
  • oHydroxybenzaldehyde is more water soluble than m and pisomers.
The correct most basicity in amines is 
  • C4H5NH2
  • CH3NH2
  • (CH3)2NH
  • (CH3)3N
The correct IUPAC name for CH2=CHCH2NHCH3 is
  • Allylmethylemine
  • 2 amino 4 pentene
  • 4 aminopent 1 ene
  • N methylprop 2 en 1 amine
The correct decreasing order of basic strength of the following species is:

H2O,NH3,OH,NH2
  • NH2>OH>NH3>H2O
  • OH>NH2>H2O>NH3
  • NH3>H2O>NH2>OH
  • H2O>NH3>OH>NH2
Aniline dissolves in HCl due to the formation of:
  • anilinium chloride
  • o-chloroaniline
  • azo dye
  • diazonium chloride
Gabriel phthalimide reaction is used for the preparation of: 
  • primary aromatic amines
  • secondary amines
  • primary aliphatic amines
  • tertiary amines
Diphenyl hydrazine is same as :
  • azoxybenzene
  • azobenzene
  • hydrazobenzene
  • aniline
The compound formed when aniline reacts with benzene diazonium chloride is:
  • p-amino azobenzene
  • anilinium chloride
  • p-hydroxy azobenzene
  • diphenyl amine
Out of the following compounds, which is the most basic in aqueous solution?
  • CH3NH2
  • (CH3)2NH
  • (CH3)3N
  • C6H5NH2
Which of the following has the maximum value of pkb?
  • (CH3)2NH
  • (CH3CH2)2NH
  • C6H5NHC6H5
  • C6H5NHCH3
Arrange the following in the correct order of their basic character in the aqueous phase.

(i) NH3

(ii) RNH2

(iii) R2NH

(iv) R3N
  • IV>III>II>I
  • III>IV>II>I
  • III>II>IV>I
  • I>II>III>IV
The colour of dye formed in the reaction between benzene diazonium chloride and phenol is:
  • yellow
  • orange
  • purple
  • blue
Which of the following when treated with aniline will give benzene diazonium chloride as the major product?
  • NaNO2 and HCl between 050C
  • HNO3 and HCl between 050C
  • C6H5NO2 between 050C
  • NaNO2 between 050C
Which of the following statements is not correct?
  • Primary amines show intermolecular hydrogen bonding.
  • Secondary amines show intermolecular hydrogen bonding.
  • Tertiary amines show intermolecular hydrogen bonding.
  • Amines have lower boiling points as compared to those of alcohols and carboxylic acids of comparable molar masses.
Which of the following orders is correct regarding the basic strength of subsituted aniline ?
  • p - nitroaniline > p - aminobenzaldehyde > p- bromoaniline
  • p - nitroaniline < p - bromoaniline < p- aminobenzaldehyde
  • p - nitroaniline < p - aminobenzaldehyde < p- bromoaniline
  • p - nitroaniline > p - aminobenzaldehyde < p-bromoaniline
Which of the following undergoes diazotization?
  • CH3NH2
  • C6H5NH2
  • CH3CONH2
  • CH3N(CH3)2
CaC2HydrolysisARedhotCutubeBHNO3H2SO450600CCFe+HClDNaNO2+HCl,00CE

In the reaction sequence given above, E is:
  • aniline
  • benzene diazonium chloride
  • phenyl osazone
  • benzoyl chloride
The correct order of basicity of the given compounds is :
  • CH3CH2NH2<HO(CH2)3NH2<HO(CH2)2NH2
  • CH3CH2NH2<HO(CH2)3NH2>HO(CH2)2NH2
  • CH3CH2NH2>HO(CH2)3NH2>HO(CH2)2NH2
  • CH3CH2NH2>HO(CH2)3NH2<HO(CH2)2NH2
CH3CH2ClNaCNXPt/H2YAceticanhydrideZ 
In the above sequence, Z is:
  • CH3CH2CH2NHCOCH3
  • CH3CH2CH2NH2
  • CH3CH2CH2CONHCH3
  • CH3CH2CH2CONHCOCH3
Amongst the following, the most basic compound is :
  • benzylamine
  • aniline
  • acetanilide
  • p-nitroaniline
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