CBSE Questions for Class 12 Engineering Chemistry Amines Quiz 6 - MCQExams.com

Which of the N atoms is least basic in the given compound ?
1103633_74a7ad0018824d6a9f5e5dbcb1c90e42.png
  • a
  • b
  • c
  • d
Which is most basic?
An organic compound (A) $$C_9H_{13}N$$ dissolves in dil. HCI and releases $$N_2$$ with $$HNO_2$$ giving an optically active alcohol. Alcohol on oxidation gives dicarboxylic acid, which on heating form anhydride. The organic compound 'A' is :-
The correct order of basicity of the above compounds is:
1115396_6004376d9e8343b0aa4228f35d041adb.png
  • II > I > IIl > IV
  • I > III > II > IV
  • III > I > II > IV
  • I > II > III > IV
Basic nature order of the given compounds is
(a) $$CH_3 - CH = \ddot{N}H $$
(b) $$CH_2= CH - CH = CH -NH_2$$
(c) $$CH_3 -NH - CH_3$$
  • c>a>b
  • a>b>c
  • a>c>b
  • c=a=b
Arrange these compounds in decreasing order of basic strength?
1114581_90f0ec234b934b01a690d491880c13c2.png
  • i > ii > iii > iv
  • ii > iii > i > iv
  • iv > i > iii > ii
  • iv > i > ii > iii
Which of the following is the strongest base?
The decreasing order of the basic character at $$a, b, c, d$$ in the compound:
1114769_e2d98678b84f42e3839a19d8a722ee27.png
  • $$a > c > b > d$$
  • $$d > c > b > a$$
  • $$c > b > d > a$$
  • $$b > c > d > a$$
Arrange the following in order of decreasing basic strength.
1114381_d4de35da2fc34ff2bb059f6704e59fff.png
  • IV > I > II > III
  • IV > I > III > II
  • IV > II > I > III
  • I > II > III > IV
The major product of the reaction is:
1117541_912c38a07f1b4cf7b242e51183769a8c.GIF
Which of the following is weak base than aniline ?
Sanger's reagent is used for the identification of:
  • N-thermal of peptide chain
  • C-terminal of a peptide chain
  • side chain of amino acids
  • number of amino acids in peptide chain
What is strong base?
The relative basics strenghts of $$NH_{3},CH_{3}NH_{2}$$ and $$NF_{3}$$ are in the order:
  • $$CH_{3}NH_{2} > NH_{3}>NF_3$$
  • $$NF_{3} > CH_{3}NH_{2} > NH_{3}$$
  • $$NH_{3} > CH_{3}NH_{2} > NF_{3}$$
  • $$NF_{3} > CH_{3}NH_{2} = NH_{3}$$
Acetic anhydride with ammonia gives the product:
  • $$ CH_{3}CONH_{2} $$
  • $$ CH_{3}CONHCH_{3} $$
  • $$ CH_{3}CN$$
  • $$ CH_{3}COONH_{4} $$
What will be the final product of the given reaction?
1128733_60f3a693a0854ddba4d6a0b8e6dfa8c8.png
which compound is Prepare propan -I- amine from?
  • Butaniteuie
  • I-Nitropropane
  • Propanamide
  • Butanamide
Adrenaline and ephedrine contain:
  • $${1}^{o}$$ amino group
  • $${2}^{o}$$ amino group
  • $${3}^{o}$$ amino group
  • quaternary amino group
Among the following which is not correct?
  • P methyl benzyl carbonyl is more stable than ethyl benzyl carbonyl
  • Aniline is more basic than pyridine
  • Cyclopentadienyl anion is more stable than cyclopentadienyl Carbo cation
  • K of Ethene 1 ol is more than that of propene 2 en 1 ol
$${C}_{6}{H}_{5}-{NO}_{2}\xrightarrow [  ]{ Fe/HCl }  A\xrightarrow [ H{ NO }_{ 3 } ]{ 273K }  B\xrightarrow [  ]{ { C }_{ 6 }{ H }_{ 5 }OH } C$$, $$C$$ is
In an amino acid, the carboxyl group ionises at $$p{K}_{{a}_{1}}=2.34$$ and ammonium ion at $$p{K}_{{a}_{2}}=9.60$$. The isoelectric point of the amino acid is at $$pH$$:
  • $$5.97$$
  • $$2.34$$
  • $$9.60$$
  • $$6.97$$
Acid anhydride on reaction with primary amine give:
  • Amide
  • Imide
  • Secondary amine
  • Imine
Nitrobenzene when reduced with tin and hydrochloric acid, i.e., in acidic medium, the product formes is:
  • Aniline
  • Benzene
  • Both a and b
  • None of these
The structural feature which distinguishes proline from other natural $$\alpha$$-amino acids is that:
  • it is optically inactive
  • it contains aromatic group
  • it contains two amino groups
  • it is secondary amine
Isopropylamine $$\xrightarrow{KMnO_4} X \xrightarrow{H_3O^+}Y$$.

In the above sequence, $$X$$ and $$Y$$ are _________, ____________ respectively
  • Aceraldimine, Ethanal
  • Ethanal, Ketimine
  • Ketimine, Acetone
  • Acetone, Propan-2-ol
Benzyl amine is............. basis than aniline while ethyl amine is..............basis than diethyl amine 
  • More, less
  • Less, more
  • Both
  • None
The order of the basicity  of the following compound is 
(1) is refer to image 
(2) $${ CH }_{ 3 }CH_{ 2 }{ NH }_{ 2 }$$
(3) $${ ({ CH }_{ 3 }) }_{ 2 }NH$$
(4) $${ CH }_{ 3 }CO{ NH }_{ 2 }$$

1158764_7055e7605e3c40cab5727cfe11295483.png
  • 2>1>3>4
  • 1>3>2>4
  • 3>1>2>4
  • 1>2>3>4
The reaction :[$${ C }_{ 2 }{ H }_{ 5 }{ B }r+{ N }{ H }_{ 3 }$$] is in fact an example of
  • Ammonolysis only
  • Nucleophilic substitution only
  • Ammonolysis as well as nucleophilic substitution
  • None
The increasing order of basicity of the following compound is:
  Gabriel phthalimide synthesisis used in the preparation of:       
  • 1$$^{o}$$ amine
  • 2$$^{o}$$ amine
  • 3$$^{o}$$ amine
  • 4$$^{o}$$ amine
The increasing order of basicity of the following compounds is: 
1153538_8cfd3e90f047411f8944ed94decbeaa8.jpg
  • $$(d)<(b)<(a)<(c)$$
  • $$(a)<(b)<(c)<(d)$$
  • $$(b)<(a)<(c)<(d)$$
  • $$(b)<(a)<(d)<(c)$$
Amongst the following the strongest base is:
  • benzylamine
  • aniline
  • m-nitroaniline
  • p-nitroaniline
Which of the following will be least basic?
Identify the statement about the basic nature of amines.
  • Alkylamines are weaker bases than ammonia
  • Arylamines are stronger bases than alkyl amines
  • Secondary aliphatic amines are stronger bases than
    primary aliphatic amines
  • Tertiary aliphatic amines are weaker bases than
    arylamines
Amine that can't be prepared by Gabriel phthalimide synthesis is:
  • Aniline
  • Benzylamine
  • Methyl amine
  • Iso-butyl amine

Which product can not be formed in given reaction?
1178318_f2beeadb9ce54bb5932b10b46a6cf87e.png
Which is most basic among the following?
  • $$C{H}_{3}N{H}_{2}$$
  • $$C{H}_{3}C{H}_{2}N{H}_{2}$$
  • $$N{H}_{3}$$
  • $$(C{H}_{3})_{2}CHN{H}_{2}$$
When methyl iodide treated with ammonia, the product obtained is:
  • methyl amine
  • dimethyl amine
  • trimethyl amine
  • all of these
Which of the following aromatic rings  having greater electronics density than the given compound?
1171638_67dd6c18c1e44ff1862c877f5a377582.png
When $$CH_{3}CH_{2}CHCl_{2}$$ is treated with $$NaNH_{2}$$ the product formed is:
  • $$CH_{3}-CH=CH_{2}$$
  • $$CH_{3}-C\equiv CH$$
The product 'Y' in the following reaction sequence is:
1306418_f79caca4c9014bcaadf0daced28627e0.PNG
the increasing order of diazotisation of the following compound is?

1278833_d4b5976ef7ce4f5bad93ed5b50336f6a.PNG
  • $$(a)<(d)<(b)<(c)$$
  • $$(d)<(c)<(b)<(a)$$
  • $$(a)<(b)<(c)<(d)$$
  • $$(a)<(d)<(c)<(b)$$
The order of bascity is
(I) $$Ph-CONH_{2}$$
(II)$$Ph- NH_{2}$$
(III) $$Ph-CH_{2}-NH_{2}$$
(IV) $$p-OCH_{3}Ph0-NH_{2}$$
  • $$II> IV> I> III$$
  • $$III> II> IV> I$$
  • $$III> IV> II> I$$
  • $$I> II> IV> III$$
The most nucleophilic nitrogen is in :
The most basic $$N-$$atom is:
1257953_3b3967ce1abe4e6c812afbe8894d59e0.png
  • $$a$$
  • $$b$$
  • $$c$$
  • $$d$$
Which of the following amines will react with cyclohexane to give enamine?
  • $$C{H_3}N{H_2}$$
  • $${(C{H_3})_2}NH$$
Image
1353352_b547da7b7467401c9c798dc7e4ab95f1.PNG
N-Ethylphthalimide $$\longrightarrow $$ Ethylamine
Reagent for the conversion of this reaction is:
  • $$H_2O$$
  • $$NaBH_4$$
  • $$NH_2-NH_2$$
  • $$CaH_2$$
Consider the following statements
(i) Out of two $$- NH_{2}$$ groups in semicarbazide only one is involved in formation of semicarbazones.
(ii) Cyclohexane froms cyanohydrin in good yield but $$2, 2, 6-trimethylcyclohexanone$$ does not.
(iii) The $$\alpha - hydrogens$$ in aldehydes and ketones are acidic.
  • i and iii
  • ii and iii
  • i and ii
  • i, ii and iii
The correct order of $$K_b$$ value of following is: 
$$(C_2H_5)_2\ddot{N}H, NH_3, \ddot{N}(C_2H_5)_3$$
  • $$1 > 2 > 3$$
  • $$1 > 3 > 2$$
  • $$3 > 2 > 1$$
  • $$3 > 1 > 2$$
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