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CBSE Questions for Class 12 Engineering Chemistry Amines Quiz 14 - MCQExams.com

Arrange he following compounding in decreasing order of basicity 
1415347_13edd7204bca4dd68db337b3e74fcbd5.PNG
  • 1 > 2 > 3 > 4
  • 4 > 1 >2 > 3
  • 1 > 4 > 2 > 3
  • all are incorrect
Which of the following series is arranged in decreasing order of basic strength?
The correct order of basicities of the following compounds is:
1418473_4a327243e8cd4cf5a1291104e07a516c.PNG
  • II>I>III
  • I>III>II
  • III>I>II
  • I>II>III
Correct order of basic strength of this compound is:
1392695_2bd4d315b7ea4677b1881890afa8c6d2.PNG
  • IV>II>III>I
  • III>II>I>IV
  • III>I>II>IV
  • I>IV>III>II
Which of the following order is not correct?
Which is the strongest base?
  • Methanamine
  • Ethanamine
  • Propan-2-amine
  • Phenyl methanamine
Arrange basicity of the following compounds in decreasing order
1446103_b0cf14b794734564ab3d2ced7643342c.GIF
  • I > II > III > IV
  • IV > III > II > I
  • III > II > I > IV
  • I > III > II > IV
Basic strength in decreasing order for the following compounds is:
1429625_ae9b2137a8b5447b973ae22f8ad04480.png
  • I >IV > III > II
  • IV > I > III > II
  • II > III > I > IV
  • IV > II > III > I
In the following compounds, the order of basicity is
1419286_e956e28edcd04d6c858cb062b1b23ed4.PNG
  • I>IV>II>III
  • II>I>IV>III
  • III>I>IV>II
  • None of these
Which of the following statements is correct regarding the preparation of ethers? 
  • Ethers can be prepared by the action of Grignard regent
  • Ethers can be prepared by action of diazomethane with acetic acid
  • Ethers can be prepared by heating alkyl halides with dry ferrous sulphide
  • Beala (b) and (c)
Identify the strongest base from the given compound.
  • All have same basic strength
If kh(hydrolysis constant) for anilinium ion is  2.4×105, then Kb for aniline will be:
  • 4.1×1010
  • 4.1×1010
  • 2.4×109
  • 2.4×1019
The correct order of basicities of the following compounds is:

1431128_92edfe21dd7e476fa60955c1625a0f0c.jpeg
  • II>I>III>IV
  • I>III>II>IV
  • II>I>III>IV
  • III>I>II>IV
correct basic strength order is 
1435770_18684488b52e4fdf83be91b6312ea079.PNG
  • IV > II > III > I
  • IV > II > I > IV
  • III > I > II > IV
  • I > IV > III > II
Guanidine is the strongest base among neutral organic compounds. The reason for the greater basicity of guanidine is:
  • presence of three nitrogen atoms in the compound
  • The delocalization of lone pairs of N
  • The planar structure of guanidine molecule
  • The stability of conjugate acid due to resonance
Basic strength order is 
1430533_a779f5d0f9a7496a8c533948ca1d9db5.PNG
  • A > B > C
  • B > A > C
  • B > C > A
  • C > B > A
Arrange the following compounds in increasing order of basicity 
CH3NH2,(CH3)2NH,NH3,C6H5NH2
  • C6H5NH2<NH3<(CH3)2NH<CH3NH2
  • CH3NH2<(CH3)2NH<NH3<C6H5NH2
  • C6H5NH2<NH3<CH3NH2<(CH3)2NH
  • (CH3)2NH<CH3NH2<NH3<C6H5NH2
Which of the following diazonium salts cannot be isolated ?
Among the following compounds, the correct increasing order of their basic strength is:

1516239_064aea1c236c46f8b9ad1810cc7d7d2a.png
  • (I)<(II)<(III)<(IV)
  • (I)<(II)<(IV)<(III)
  • (II)<(I)<(III)<(IV)
  • (II)<(I)<(IV)<(III)
Which of the following is soluble in dil. aqueous HCl?
  • C6H5NH2
  • C6H5CH2NH2
  • C6H5CONH2
Carbonyl compound and primary Amine react together to form which type of compound?
  • Imines
  • Aldehyde
  • Amine
  • Quinones
Most basic amine among the following is 
  • CH3NH2
  • CH3CONH2
  • (CH3)2NH
  • (CH3)3N
What is the decreasing order of basicity ?
  • NH3>C2H5NH2>(C2H5)2NH>(C2H5)3N
  • (C2H5)3N>(C2H5)2NH>C2H5NH2>NH3
  • (C2H5)2NH>C2H5NH2>(C2H5)3N>NH3
  • (C2H5)2NH>C2H5NH2>NH3>(C2H5)3N
Choose the correct statement 
  • 1 amine are more basic then 2 amines
  • 2 amines are more basic than 1 amines
  • basicity of 1 and 2 amines are equal
  • 1 and 2 amines are not basic
Which of following has least pKb, value?
Which one of the following is the strongest base in aqueous solution?
  • Dimethylamine
  • Methylamine
  • Trimethylamine
  • None of these
Correct decreasing order of pKb value of following compounds:
1552791_40cb70d52a594b358e91c2693a13b18e.PNG
  • I > IV > II > III
  • I > II > IV > III
  • IV > I > II > III
  • I > II > III > IV
Which of the following is strongest base?
 When pure aniline is kept in air then .. colour is obtained.
  • dark red
  • dark pink
  • black
  • dark yellow

Which nitrogen in lysergic acid diethylamide (LSD) is most basic?
1541069_af087ec1fa534bd88a8be04b0f75e2b2.PNG
  • 1
  • 2
  • 3
  • all are equally basic
Among the following compounds, the increasing order of their basic strength is

1517804_3a37757397a44dca9dd9af5f23395b7f.png
  • ( I ) < ( I I ) < ( I I I ) < ( I V )
  • (I)<(II)<(IV)<(III)
  • ( I I ) < ( I ) < ( I I ) < ( I V )
  • (II)<(I)<(IV)<(III)
Which of these alkyl halides can be used to prepare amines using Gabriel phthalimide synthesis?
  • Vinyl bromide
  • 1- bromo-3- methylpentane
  • Bromobenzene
  • 2- bromo- 2,3 - dimethylbutane
The relationship between the values of osmotic pressure of 0.1 M solutions of KNO3(P1)CH3COOH(P2) is
  • p1>p2
  • p2>p1
  • p1=p2
  • p1p1+p2=p2p1+2p2
Which of the following compound are less basic than aniline?
RX can be converted into RCH2NH2 by treatment with KCN and 
  • reduction with reducing agent as Na in alcohol
  • hydrolysis with dil. HCl
  • hydrolysis with alkaline H2O2
  • none of these
X is mixed with a mixture of phenol and aniline in acidic medium.The product obtained is:
1611937_a5d5945c78e24cfeac15e42bf212094f.png
What is the decreasing order of strength of the bases?
(I) OH   (ii) NH2    (III) HCC   (IV)  CH3CH2
  • IV> II> III> I
  • III> IV> II> I
  • I> II> III> IV
  • II> III> I> IV
oBrC6H5NH2 
  • aliphatic 1 - amine
  • aromatic 1 - amine
  • aliphatic 2 - amine
  • aromatic 2 - amine
What is the most basic nature ?
Which of the following amine will be prepared by Gabriel phthalimide reaction?
  • n-Butylamine
  • Triethylamine
  • neo-Pentylamine
  • tert-Butylamine
In the following compounds, the decreasing order of basic strength will be:
  • (C2H5)2NH>C2H5NH2>NH3
  • (C2H5)2NH>NH3>C2H5NH2
  • NH3>C2H5NH2>(C2H5)2NH
  • C2H5NH2>NH3>(C2H5)2NH
What will be the product of the given reaction?
1611202_fb19de276c2a443f8ab8d9427c1579e4.png
Which of the following is not correct regarding basic strength ?
Amino acid of the above ion exist as shown above at pH:
1717307_044e56b4682e4b4183dd342daf4423c4.PNG
  • 1
  • 7
  • 11
  • 13
The correct order of basicities of the following compounds 
(2) CH3CH2NH2 
(3) (CH3)2NH
1717257_1e034130454e40598b8d6e2d36c0b8c5.PNG
  • 2 > 1 > 3> 4
  • 1 > 3 > 2 > 4
  • 3 > 1 > 2 > 4
  • 3 > 2 > 1 > 4
Which of the following amines can be prepared by Gabriel phthalimide reaction?
  • Neo-pentylamine
  • n-butylamine
  • Triethylamine
  • t-butylamine
Ethylamine (C2H5NH2) can be obtained from N-ethylphthalimide on treatment with:
  • NaBH4
  • CaH2
  • H2O
  • NH2NH2
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
Aniline dissolved in dilute HCl is reacted with sodium nitrite at 0oC. This solution was added dropwise to a solution containing equimolar mixture of aniline and phenol in dil. HCl. The structure of the major product is:
The correct order of basicity of the following compounds is:
1720792_79d09dc1ffb74ed780321c88a93c8771.png
  • 2>1>3>4
  • 4>3>1>2
  • 3>1>2>4
  • 1>2>3>4
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