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CBSE Questions for Class 12 Medical Chemistry Organic Compounds Containing Nitrogen Quiz 15 - MCQExams.com

Arrange the basicity of the following compounds in decreasing order.

(I) CH3CH2NH2
(II) H2C=CHNH2
(III) HCCNH2
(IV) C6H5NH2
  • I > II > III > IV
  • IV > III > II > I
  • III > II > I > IV
  • I > III > II > IV
(RCO)2NH is
  • Primary amine
  • Secondary amine
  • Secondary amide
  • Tertiary amide
C3H9N represents
  • Primary amine
  • Secondary amine
  • Tertiary amine
  • All of these
Rank the following compound in the order of decreasing basicity.

1748510_6449d13a2b554060809e5b31dce60bb4.png
  • I, II, III
  • III, II, I
  • II, I, III
  • III, I, II
In the Gabriel's phthalimide synthesis, phthalimide is treated first with
  • C2H5I/KOH
  • Ethanolic Na
  • Ethanol and H2SO4
  • Ether and LiAlH4
Urotropine is 
  • Hexamethylene tetramine
  • Hexaethylene tetramine
  • Hexamethylene diamine
  • None of these
Identify the product in following order
3,4,5Tribromoaniline(i)diazotizaton(ii)H3PO2?
  • 3,4,5- Tribromobenzene
  • 1,2,3-- Tribromobenzene
  • 2,4,6-- Tribromobenzene
  • 3,4,5-- Tribromo nitro benzene
  • 3,4,5-- Tribromo phenol
Action of diazomethane on phenol liberates
  • O2
  • H2
  • N2
  • CO2
When aniline is treated with sodium nitrate and hydrocholric acid at O.C, it gives 
  • Phenol and N2
  • Diazonium salt
  • Hydrazo compound
  • No reaction take place
The diazonium salts are the reaction product in presence of excess of mineral acid with nitrous acid and
  • Primary aliphatic amine
  • Secondary aromatic amine
  • Primary aromatic amine
  • Tertiary alipathic amine
Which statement is not correct  ?
  • Amines from hydrogen bond
  • Ethyl amine has higher boiling point than propane
  • Methyl amine is more basic than ammonia
  • Diamethyl amine is less basic than methyl amine
Diazo-coupling is useful to prepare some:
  • Pesticides
  • Proteins
  • Dyes
  • Vitamins
In this reaction C6H5NH2+HCl+NaNO2X 
product X is 
  • Aniline hydrochloride
  • Nitro aniline
  • Benzenediazonium chloride
  • None of these
Diazo-coupling is use ful to prepare some
  • Dyes
  • Proteins
  • Pesticides
  • Vitamins
Which of the following statements are true?
1769323_d0bdebe81b8647aa905051ad5bfb693e.png
  • (I) and (III) are modest Bronsted bases, whereas (II) is not.
  • In (III), Na in more basic than Nb
  • When (III) is protonated in the presence of a strong acid, protonation occurs at C2
  • (I) and (II) compounds are aromatic.
Which of the following statements are correct?
1769328_bae63d6832e34d609c89648733f23971.png
  • (I) and (II) are aromatic and have equal basic strength
  • (I) is aromatic (II) is anti-aromatic, but (II) is a stronger base than (I)
  • The basicity order of above compounds is (IV)>(III)>(II)>(I)
  • The conjugate acid of (IV) is more stabilised than the conjugate acid of (II)
Nitrobenzene on reduction with Zn/NaOH gives:
  • C6H5N=NC6H5
  • C6H5NHNHC6H5
  • C6H5NHOH
  • C6H5NO=NC6H5
Which of the following amines can be prepared by Gabriel synthesis.
  • Isobutyl amine
  • 2 Phenylethylamine
  • nmethylanime
  • Anilline
The major product of the reaction is
1846985_984c088638604429ae6eab1b39ca9e4f.png
Which of the following is most basic?
  • CH3NH2
  • (CH3)2NH
  • (CH3)3N
  • C6H5NH2
C3H9N does not show
  • Primary amine
  • Quaternary salt
  • Tertiary amine
  • Secondary amine
C3N9N cannot represent
  • 1o amine
  • 2o amine
  • 3o amine
  • quaternary ammonium salt
The correct increasing order of basic strength for the following compounds 
1848882_ac53a4b37b494e44a21c64f32e1e9ba6.png
  • I>III>II
  • III>II>I
  • II>I>III
  • III>I>II
Which of the following has highest pKb value?
  • (CH3)CNH2
  • NH3
  • (CH3)2NH
  • CH3NH2
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