CBSE Questions for Class 12 Medical Chemistry Organic Compounds Containing Nitrogen Quiz 14 - MCQExams.com

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 one of the following will be most basic?
Which is the strongest base?
  • Methanamine
  • Ethanamine
  • Propan-2-amine
  • Phenyl methanamine
Arrange the following molecules in the descending order of basicity :
$$\eqalign{
& {\text{I)}}{C_6}{H_5}N{H_2}\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;{\text{II}}){\text{m}} - {\text{N}}{{\text{O}}_{\text{2}}}{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{4}}}{\text{N}}{{\text{H}}_{\text{2}}} \cr
& {\text{III)p}} - {\text{N}}{{\text{O}}_{\text{2}}}{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{4}}}{\text{N}}{{\text{H}}_{\text{2}}}\;\;\;\;\;{\text{IV)}}\;{\text{o}} - {\text{N}}{{\text{O}}_{\text{2}}}{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{4}}}{\text{N}}{{\text{H}}_{\text{2}}} \cr} $$
  • IV > III > II > I
  • I > III > IV > II
  • I > II > III > IV
  • III > I > IV > II
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
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)
If $$k _ { h }$$(hydrolysis constant) for anilinium ion is  $$2.4 \times 10 ^ { - 5 }$$, then $$\mathrm { K } _ { \mathrm { b } }$$ for aniline will be:
  • $$4.1 \times 10 ^ { 10 }$$
  • $$4.1 \times 10 ^ { - 10 }$$
  • $$2.4 \times 10 ^ { 9 }$$
  • $$2.4 \times 10 ^ { - 19 }$$
The correct order of basicities of the following compounds is:

1431128_92edfe21dd7e476fa60955c1625a0f0c.jpeg
  • $$II> I > III > IV$$
  • $$I > III > II > IV$$
  • $$II > I > III > IV$$
  • $$III > I > II > IV$$
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
correct basic strength order is 
1435770_18684488b52e4fdf83be91b6312ea079.PNG
  • IV > II > III > I
  • IV > II > I > IV
  • III > I > II > IV
  • I > IV > III > II
The correct order of basicities of the following compounds is:
1418473_4a327243e8cd4cf5a1291104e07a516c.PNG
  • $$II>I>III$$
  • $$I>III>II$$
  • $$III>I>II$$
  • $$I>II>III$$
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 
$$CH_3 NH_2,(CH_3)_2NH,NH_3,C_6H_5NH_2$$
  • $$C_6H_5NH_2<NH_3<(CH_3)_2NH<CH_3NH_2$$
  • $$CH_3NH_2<(CH_3)_2NH<NH_3<C_6H_5NH_2$$
  • $$C_6H_5NH_2<NH_3<CH_3NH_2<(CH_3)_2NH$$
  • $$(CH_3)_2NH<CH_3NH_2<NH_3<C_6H_5NH_2$$
Which of the following diazonium salts cannot be isolated ?
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
Which of the following is soluble in dil. aqueous $$HCl?$$
  • $$\mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { NH } _ { 2 }$$
  • $$\mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { CH } _ { 2 } \mathrm { NH } _ { 2 }$$
  • $$\mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { CONH } _ { 2 }$$
Carbonyl compound and primary Amine react together to form which type of compound?
  • Imines
  • Aldehyde
  • Amine
  • Quinones
Most basic amine among the following is 
  • $$ CH_3NH_2 $$
  • $$ CH_3CONH_2 $$
  • $$ (CH_3)_2 NH $$
  • $$ ( CH_3)_3N $$
Compound $$I$$ is more basic than compound $$II$$ because___
1453091_aea33588cd9047fabeaf4aa928caf518.png
  • $$-NO_{2}$$ in compound $$I$$ is poor inductive group
  • $$-NO_{2}$$ in compound $$I$$ is stronger inductive group
  • $$-NO_{2}$$ in compound $$I$$ is stronger $$-M$$ group
  • $$-NO_{2}$$ in compound $$I$$ is weaker $$-M$$ group
Choose the correct statement 
  • $$1^{\circ}$$ amine are more basic then $$2^{\circ}$$ amines
  • $$2^{\circ}$$ amines are more basic than $$1^{\circ}$$ amines
  • basicity of $$1^{\circ}$$ and $$2^{\circ}$$ amines are equal
  • $$1^{\circ}$$ and $$2^{\circ}$$ amines are not basic
Which of following has least p$$K_b$$, value?
Anilines are basic due to lone pair on their nitrogen atoms. Among the following the most basic aniline is 
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
Among the following compounds, the increasing order of their basic strength is

1517804_3a37757397a44dca9dd9af5f23395b7f.png
  • ( I ) < ( I I ) < ( I I I ) < ( I V )
  • $$(I) < ( \mathrm { II } ) < ( \mathrm { IV } ) < ( \mathrm { III } )$$
  • ( I I ) < ( I ) < ( I I ) < ( I V )
  • $$( \mathrm { II } ) < ( \mathrm { I } ) < ( \mathrm { IV } ) < ( \mathrm { III } )$$
Among the following compounds, the correct increasing order of their basic strength is:

1516239_064aea1c236c46f8b9ad1810cc7d7d2a.png
  • $$( I ) < ( I I ) < ( I II ) < ( I V )$$
  • $$( I ) < ( I I ) < ( IV ) < ( III )$$
  • $$( I I ) < ( I ) < ( I II ) < ( I V )$$
  • $$( I I ) < ( I ) < ( IV ) < ( III )$$
The most basic compound among the following is
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
What is the decreasing order of strength of the bases?
(I) $${OH}^{-}$$   (ii) $${NH}_{2}^{-}$$    (III) $$H-C\equiv {C}^{-}$$   (IV)  $${CH}_{3}{CH}_{2}^{-}$$
  • IV> II> III> I
  • III> IV> II> I
  • I> II> III> IV
  • II> III> I> IV
Correct decreasing order of $$pK_b$$ value of following compounds:
1552791_40cb70d52a594b358e91c2693a13b18e.PNG
  • I $$>$$ IV $$>$$ II $$>$$ III
  • I $$>$$ II $$>$$ IV $$>$$ III
  • IV $$>$$ I $$>$$ II $$>$$ III
  • I $$>$$ II $$>$$ III $$>$$ IV

Which nitrogen in lysergic acid diethylamide (LSD) is most basic?
1541069_af087ec1fa534bd88a8be04b0f75e2b2.PNG
  • 1
  • 2
  • 3
  • all are equally basic
$$o-Br - C_{6}H_{5}-NH_{2}$$ 
  • aliphatic $$1^{\circ}$$ - amine
  • aromatic $$1^{\circ}$$ - amine
  • aliphatic $$2^{\circ}$$ - amine
  • aromatic $$2^{\circ}$$ - amine
What is the most basic nature ?
Which of the following is not correct regarding basic strength ?
Which of the following compound are less basic than aniline?
$$X$$ is mixed with a mixture of phenol and aniline in acidic medium.The product obtained is:
1611937_a5d5945c78e24cfeac15e42bf212094f.png
Which of the following amine will be prepared by Gabriel phthalimide reaction?
  • n-Butylamine
  • Triethylamine
  • neo-Pentylamine
  • tert-Butylamine
Which of the following amines can be prepared by Gabriel phthalimide reaction?
  • Neo-pentylamine
  • n-butylamine
  • Triethylamine
  • t-butylamine
In the following compounds, the decreasing order of basic strength will be:
  • $$(C_2H_5)_2NH>C_2H_5NH_2>NH_3$$
  • $$(C_2H_5)_2NH>NH_3>C_2H_5NH_2$$
  • $$NH_3>C_2H_5NH_2>(C_2H_5)_2NH$$
  • $$C_2H_5NH_2>NH_3>(C_2H_5)_2NH$$
Ethylamine $$(C_2H_5NH_2)$$ can be obtained from N-ethylphthalimide on treatment with:
  • $$NaBH_4$$
  • $$CaH_2$$
  • $$H_2O$$
  • $$NH_2NH_2$$
Product is:
1611384_75305bb62cba4b51afdc27e8a8b1cbde.PNG
What will be the product of the given reaction?
1611202_fb19de276c2a443f8ab8d9427c1579e4.png
Coupling of benzene diazonium chloride with 1-napthol in alkaline medium will give:
Aniline dissolved in dilute $$HCl$$ is reacted with sodium nitrite at $${0}^{o}C$$. 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
  • $$2>1>3>4$$
  • $$4>3>1>2$$
  • $$3>1>2>4$$
  • $$1>2>3>4$$
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) $$ CH_3CH_2NH_2 $$ 
(3) $$ (CH_3)_2 NH $$
1717257_1e034130454e40598b8d6e2d36c0b8c5.PNG
  • 2 > 1 > 3> 4
  • 1 > 3 > 2 > 4
  • 3 > 1 > 2 > 4
  • 3 > 2 > 1 > 4
The correct order of the basic strength of following compounds is:
1720809_e1bc2e737a7a4d8b942aee890d7e67ae.png
  • $$4>2>3>1$$
  • $$4>2>1>3$$
  • $$3>1>2>4$$
  • $$1>3>4>2$$
Which of the following is the correct order of basic character ?
I.   1-Amino Propane 
II.  Ethanamide 
III. Guanidine $$[HN=C(NH_2)_2]$$
IV. Aniline 
  • I > II > III > IV
  • III > I > IV > II
  • IV > III > I > II
  • III > II > I > IV
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