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CBSE Questions for Class 12 Engineering Chemistry Amines Quiz 11 - MCQExams.com

The increasing order of reactivity of these diazonium ions in azo-coupling reaction (under similar conditions) will be:

696237_056dce1f62ad45b386e2aa52f59da6eb.png
  • I < IV < II < III
  • I < III < IV < II
  • III < II < IV < I
  • III < I < IV < II
Among the following amines, which one has the highest pKb value in aqueous solution?
  • Methanamine
  • N, N-dimethylaniline
  • Ethanamine
  • Benzenamine
  • None of the above
Which of the following is a correct decreasing order of boiling points of the given isometric compounds:
Ethyldimethyl amine (I), n-butylamine (II), Diethylamine (III)
  • II>III>I
  • I>II>III
  • III>II>I
  • III>I>II
The correct order of basic strength of the following are:
654824_f2682514a72d473084093f47e0c4f192.png
  • 1>2>3>4
  • 4>2>3>1
  • 3>4>2>1
  • 3>2>4>1
I: CH2=CHCH2NH2, II:CH3CH2CH2NH2,III: CHCCH2NH2
What is the correct order of basicity of the above compounds?
  • I > II > III
  • II > I > III
  • III > II > I
  • II < III < I
Which one of the following is least basic in character? (Compare basicity at N-H position).
How many π electrons are present in the above conjugation compound?
712195_cb0bb664cf4647e7bed37600f0d1e25c.png
  • 2
  • 4
  • 6
  • None of these
Which of the following compound is strongest base?
  • CH3CONH2
  • NH2CONH2
  • NH2NH||CNH2
  • CH3CONHCOCH3
What is the final product?
782192_21c76051dadc471d9455c86ce68a87ed.png
The order of basic strength the above compound is:
785369_71bb3b3e433349faa3e39745d72e62fe.png
  • a>b>c
  • b>a>c
  • c>a>b
  • c>b>a
Which is the strongest acid amongst the following compounds?
Decreasing order of basicity is?
(i) CH3NH2
(ii) C6H5CH2NH2
(iii) pCH3OC6H4NH2
(iv) mCH3OC6H4NH2
  • I > II > III > IV
  • II > IV > I > III
  • II > IV > III > I
  • IV > I > II > III
The compunds X and Y are respectively
877086_d398741d5eef40a98dce8c1e520a0104.png
  • CH3CH2NH2,CH2COCl
  • CH3CONH2,CH3CH2Cl
  • CH3COOH2,CH3CONH2
  • CH3CONH2,CH3COOH
Which of the following amino acid has pH greater than 7?
  • Glutamic acid
  • Lysine
  • Glycine
  • Alanine
The increasing order of diazotisation of the following compounds is:
870099_f0e07ac5a4c449dda65875e5abe3c3ed.png
  • (D)<(C)<(B)<(A)
  • (A)<(D)<(B)<(C)
  • (A)<(B)<(C)<(D)
  • (A)<(D)<(C)<(B)
The increasing order of basicity of the above compounds is:
845586_6f7199eba3ed4da59058916f3c861cbc.png
  • (b)<(a)<(d)<(c)
  • (d)<(b)<(a)<(c)
  • (a)<(b)<(c)<(d)
  • (b)<(a)<(c)<(d)
What is the order of basic strength of the following? 
878759_ea078000830641918c99d558c01a710e.png
  • 1>2>3>4
  • 4>1>2>3
  • 4>3>1>2
  • 3>4>1>2
Which order for amines is incorrect?
  • Order of basicity in aq. medium.
  • Order of boiling point.
  • Order of basicity in gaseous state.
  • The order of aqueous solubility.
The decreasing order of boiling points of ethyldimethylamine, n- butylamine and diethylamine is n - Butylamine > Diethylamine > Ethyldimethylamine. This trend of the boiling point can be explained as:
  • boiling point increases with increase in molecular mass
  • tertiary amines have highest boiling point due to highest basicity
  • intermolecular hydrogen bonding is maximum in primary amines and absent in tertiary amines
  • intramolecular hydrogen bonding is present in tertiary amines
Aniline when diazotised in cold and then treated with N, N - dimethylaniline gives a coloured product. The structure of this product is:
The best method for preparing primary amines from alkyl halides without changing the number of carbon atoms in the chain is:
  • Hofmann bromamide reaction
  • Gabriel phthalimide synthesis
  • Sandmeyer reaction
  • Reaction with NH3
Reduction of CH3CH2NC with hydrogen in presence of Ni or Pt as catalyst gives:
  • CH3CH2NH2
  • CH3CH2NHCH3
  • CH3CH2NHCH2CH3
  • (CH3)3N
Most basic species amongst  the following is:
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
The correct basic strength order of following anions is :
  • CH3CH2>NH2>CH2=CH>CHC>HO>F
  • NH2>CH3CH2>CH2=CH>CHC>F>HO
  • CH3CH2>CH2=CH>NH2>CHC>HO>F
  • F>HO>CHC>CH2=CH>NH2>CH3CH2
Identify Z in the sequence.
C6H5NH2NaNO2+HCl273KXCuCNYH+/H2OBoilZ
  • C6H5CN
  • C6H5CONH2
  • C6H5COOH
  • C6H5CH2NH2

The correct order of decreasing basicity of the above compounds is :
1042926_25053331d1844ab7a73995557e49855e.png
  • I > II > III > IV
  • II > I > III > IV
  • III > IV > I > II
  • II > I > IV > III
CH3NH||C(1)NH2CH3CH2(2)NH2


(CH3)2(3)NH,             CH3O||C(4)NH2
The correct order of the basicities of the following compounds is:
  • 2>1>3>4
  • 1>3>2>4
  • 3>1>2>4
  • 1>2>3>4
Product of this reaction is?
993148_42e3f8c6aa9c469ea84a9607f8dab2a1.png
Which is most volatile?
  • CH3CH2CH2NH2
  • (CH3)3N
  • CH3OH
ΔH+ (Major product )
1067472_bb4ef485ca7e42ddb90675ccca9b2b13.png
  • CH3C||ONHPh
  • PhCH2C||ONH2
  • PhC||ONHCH3
  • PhCH2CH2NH2
The correct order of decreasing basicity of the given compounds is :
1040877_a7402be6ee15467587a99ebd6641312f.png
  • I > II > III > IV
  • II > I > IV > III
  • III > IV > II > I
  • II > I > III > IV
Which is the weakest base among the followings?
The solubility of diethyl ether in water is comparable with that of:
  • ethanamine
  • chlorobutane
  • 1-butanol
  • ethanol
Compare the basic strength of compounds given:
989406_70c78876485140eebe89d9a7aa2e9e16.PNG
  • (i)>(ii)>(iii)
  • (ii)>(i)>(iii)
  • (ii)>(iii)>(i)
  • (iii)>(ii)>(i)
Which of the following compound is the most basic?
Which of the following aryl amine undergoes diazotization most readily?
The correct order of basicites of the following compounds is:-
1120616_abfd2430f2e3455f9c1e84d74212f7b7.png
  • II>I>III>IV
  • I>III>II>IV
  • III>I>II>IV
  • I>II>III>IV
CH3NH2(CH3COOCH3),ΔX 
  • X is more basic than CH3NH2
  • X is less basic than CH3NH2
  • X is a tertiary amine
  • None

The correct decreasing order of pKb:
1100454_2c0bc11f831545d48aa9d2367a97691d.png
  • I>II>III>IV
  • III>IV>II>I
  • II>III>IV>I
  • IV>II>I>III
Which of the following cannot exist in room temperature?
The correct order of the pKa values for the conjugate acids of the heterocyclic compound is:

1076452_38f9f45c138e472fade16ff238d1ae6a.png
  • II>III>I>IV
  • IV>II>III>I
  • III>II>IV>I
  • III>IV>II>I
Diazomethane was photolysed to generate singlet carbine which was treated with cis-2-butene. The main product(s) of the reaction is/are:
  • cis-1, 2-dimethylcyclopropane
  • trans-1, 2-dimethylcyclopropane
  • mixture of (A) and (B)
  • Ethylcyclopropane
Identify the most basic compound from the following.
  • Primary amines 
  • Secondary amines 
  •  Aromatic amines 
  •  Aliphatic amines
Final product (III) obtained in the reaction sequence is:
1162767_105554882cd841618578df29e5d69283.png
Which of the following amines cannot be prepared by path-1?
Which of the following compound(s) will not dissolve in an alkali solution after it has undergone reaction with Hinsberg's reagent?
  • Diethyl amine
  • Isopropyl amine
  • N-methyl ehtanamine
  • N,N-dimethyl aniline
Number of isomeric primary amines obtained from C4H11N are :
  • 3
  • 4
  • 5
  • 6
Given compound is a:
1152829_9dd2651181644a98bbcc5cce1b7c7ed6.png
  • Primary amine
  • Secondary amine
  • Tertiary amine
  • Ammonium salt
Amongest the following the most basic compound is:
  • p-nitro aniline
  • Acetanilide
  • Aniline
  • Benzylamine
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