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

A 55- kDa protien was acid hydrolysed to obtain a misture of amino acids. How many amino acids could be present in the solution?
  • 550
  • 500
  • 1000
  • 1100
Phenyl acetonitrile reacts with sodium and alcohol to give
  • PhCH2 CH2NH2PhCH2 CH2NH2
  • Ph CH2NH2Ph CH2NH2
  • CH3CH2NHPhCH3CH2NHPh
  • PhNH2PhNH2
The most basic compound among the following is 
  • Benzylamine
  • Aniline
  • Acetanilide
  • p-nitroaniline
Which of the following amines cannot be prepared by Gabriel Phthalimide reaction?  
  • CH3NH2|NH2CH3CH3NH2|NH2CH3
Which of the following will be most stable diazonium salt RN+2XRN+2X ?
  • CH3N+2XCH3N+2X
  • C6H5N+2XC6H5N+2X
  • CH3CH2N+2XCH3CH2N+2X
  • C6H5CH2N+2XC6H5CH2N+2X
Which of the following is obtained by reducing methyl cyanide with Na+C2H5OHNa+C2H5OH?
  • Methyl alcohol
  • Acetic acid
  • Ethyl amine
  • Methane
Factors responsible for base strength comparison of amines in aqueous solution ? 
  • Availability of lone pair on nitrogen
  • Lone pair donating power of nitrogen
  • Stability of conjugate acid formed by solvation through H-bonding.
  • All of the above
Strongest base is 
  • CH2 = CHCH2NH2
  • CH2 = CHCH2NH2
  • CH3CH2CH2NH2
Which of the following order is correct ?
  • All of the above
Minimum C-atom required for 2 amine to show chain isomerism are:
  • 4
  • 6
  • 3
  • 5
CH3NH2+CHCl3+KOH Nitrogen containing compound +KCl+H2O. Nitrogen containing compound is:
  • CH3CN
  • CH3NHCH3
  • CH3ˉN+C
  • CH3+NC:
NH2 group in aniline is:
  • m- directing and deactivating
  • o,p- directing and deactivating
  • o,p- directing and activating
  • m- directing and activating
Which of the following compound has highest boiling point ?
Which of the following are soluble in aq. NaOH solution ?
2) H3CCH2NH2
3) (CH3)2NH
Write basicity order of the above 

1189556_307c70667d0548cda3171b91599ebc50.jpg
  • 1>2>3
  • 3>2>1
  • 1>3>2
  • 2>3>1
2) H3CCH2NH2
3) (CH3)2NH
Write basicity order of the above 


1189536_e6f4a60237104778a0a494e36bb5edb5.jpg
  • 1>2>3
  • 3>2>1
  • 1>3>2
  • 2>3>1
Which nitrogen atom is most basic in the above given compound?

1195407_0939b9053cd8499986731bccb8befa3a.JPG
  • 3
  • 4
  • 5
  • 2
What will be the final product in the following reaction sequence?
CH3CH2CNH+/H2OANH3ΔBNaOBr
  • CH3CH2CONH2
  • CH3CH2COBr
  • CH3CH2NH2
  • CH3CH2CH2NH2
Find the B in the following reaction
1178693_9a96653724544289bae51a42390a8100.jpg
Which of the following is correct about Guanidine base?
  • Resonance possible
  • Odd number of p- electrons
  • Localized lone pair of e
  • Delocalized lone pair of e
The correct order of increasing basic nature for the bases NH3,CH3NH2 and (CH3)2NH is :
  • NH3<CH3NH2 < (CH3)2NH
  • (CH3)2NH<CH3NH2<NH3
  • CH3NH2<NH3<(CH3)2NH
  • NH3<(CH3)2NH<CH3NH2
What is the decreasing order of basicity of pri-, sec-, and tert-, ethyl amines and NH3 ?
  • NH3 > C2H5NH2 > (C2H5)2NH > (C2H5)3N
  • (C2H5)3N > (C2H5)2NH > C2H5NH2 > NH3
  • (C2H5)2NH > C2H5NH2 > (C2H5)3N > NH3
  • (C2H5)2NH > C2H5NH2 > NH3 > (C2H5)3N
A [Cr(H2O)6]3+ typically absorbs at around 574 nm. It is allowed to react with ammonia to form a new complex [Cr(NH3)6]3+ that should have absorption at
  • 800 nm
  • 462 nm
  • 620 nm
  • 574 nm
Which of the following compounds has the most basic nitrogen?
1210957_cf0441ef46dd46a78a00dd69feb0e967.png
  • a
  • b
  • c
  • d

Compare basic strength:
1212465_fe1f5f8279de42fbb6e27661e4d801db.png
  • a>b>c
  • b>a>c
  • c>a>b
  • c>b>a
Arrange the following in the decreasing order of their pKa value: 
I . CH2=CHCH2NH2
II .CH3CH2CH2NH2
III . CHCCH2NH2
  • III<II<I
  • II>I>III
  • III>II>I
  • II>III>I
Which of the  following will not react with sodiumnitrite and HCl?
Among the following which amine can be prepared by Gabriel phthalimide method?
  • C6H5NH2
  • CH3NHCH2CH3
Which of the following is an Incorrect statement about benzenediazonium chloride?
  • It is prepared by the reaction of aniline with nitrous acid at 273-278 K
  • It is a colourless crystalline solid
  • Alkyl diazonium salts are more stable than arenediazonium salts
  • Benzene diazonium fluoroborate is water insoluble & stable at room temperature
10,20 and 30 amine can be distinguished by?
  • Hinsberg reaction
  • Hoffmann reaction
  • Reaction with Nitrous acid
  • All of these

Arrange the following compounds in decreasing order of basicity:
1251414_fe8a6e8c663d453eae21ded397a4c5f3.JPG
  • P > Q > R > S
  • Q > P > R > S
  • R > S > Q > P
  • Q > P > S > R
Among the following compounds, the most basic compound is:
Which of the following is most basic:
  • CH3CH2NH2
  • CH3CH2NHCH3
  • CH3CONH2
Most basic nitrogen among the following
Which of the following given compounds is the strongest base?

A mixture containing the following four compounds is extracted with 1 M HCl. The compound that goes to aqueous layer is :


1294768_f8b7c1bb7e18437a833aad665b6dfb10.png
  • II
  • III
  • IV
  • I
The correct order of basicities of the following compounds is-
1296385_2acb87fb155046e0a6d0592421e10c9a.png
  • B > A > C > D
  • A > C > B > D
  • A > A > B > D
  • A > B > C > D
Which of the following is most basic in nature?
Arrange basicity of given compounds in decreasing order :
(1) CH3CH2NH2
(2) CH2=CHNH2
(3) CHCNH2
(4) C6H5NH2 
  • 1>2>3>4
  • 4>3>2>1
  • 3>2>1>4
  • 1>3>2>4
The given imine can be prepared from which of the following
1293842_d2a442ca62a844b0a9e84100ca999157.PNG
  • all of these
Arrange the compounds in decreasing order of basicity

 Ammonia, Triethylamine, Aniline, Ethylamine, Diethylamine
  •  Diethylamine > Triethylamine > Ethylamine > Ammonia > Aniline
  • Diethylamine > Ethylamine >Triethylamine> Ammonia > Aniline
  • Triethylamine > Diethylamine > Ethylamine> Ammonia > Aniline
  • Aniline > Ethylamine> Diethylamine >Triethylamine> Ammonia 
Highest basic strength of the following compounds is of: 

Arrange in decreasing order of basicity:
1299594_42a11dd78d9b488a869802df3a9152e7.JPG
  • R>S>P>Q
  • Q>P>R>S
  • S>R>P>Q
  • R>S>Q>P
For the successful diazotization of arylamines, how many mole of mineral acid (HCl or H2SO4) are required for each mole of the amine?
  • 1
  • 2
  • 3
  • 4
Which of the following order regarding basicity of amines is correct?
Amines are basic in nature because
  • They produce OH ions when treated with H2O
  • They have polar H atom attached to nitrogen atom
  • They have lone pair of electrons on nitrogen atom
  • They have alkyl group attached with nitrogen atom
The most stable diazonium salt is ........
  • CH3N2X
  • C6H5N2X
  • C2H5N2X
  • C6H5CH2N2X
Among the following amines, the strongest Bronsted base is 
Which of the following shows he correct order of decreasing the basic strength in benzene medium?
  • CH3NH2>(CH3)3N>(CH3)2NH>NH3
  • (CH3)2NH>NH3>(CH3)3N>CH3NH2
  • (CH3)2NH>(CH3)3N>NH3>CH3NH2
  • (CH3)3N>(CH3)2NH>CH3NH2>NH3
HCONRPOCl3pyridine(a)+H2O; (a) in the above reaction is:
  • RCH=NOH
  • RN=C=O
  • RC=N
  • RN=C
0:0:1


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