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
  • $$Ph-CH_2\ CH_2NH_2$$
  • $$Ph\ CH_2-NH_2$$
  • $$CH_3-CH_2-NH-Ph$$
  • $$Ph-NH_2$$
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?  
  • $$CH_3-\underset{NH_2}{\underset{|\,\,\,\,\,\,\,}{NH_2}}-CH_3$$
Which of the following will be most stable diazonium salt $$RN_2^{+}X^{-}$$ ?
  • $$CH_3N_2^{+}X^{-}$$
  • $$C_6H_5N_2^{+}X^{-}$$
  • $$CH_3 CH_2 N_2^{+}X^{-}$$
  • $$C_6H_5 CH_2 N_2^{+}X^{-}$$
Which of the following is obtained by reducing methyl cyanide with $$Na+ C_2H_5OH$$?
  • 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 
  • $$CH_2$$ = $$CH -CH_2-NH_2$$
  • $$CH_2$$ = $$CH- CH_2 - NH_2$$
  • $$CH_3CH_2CH_2NH_2$$
Which of the following order is correct ?
  • All of the above
Minimum C-atom required for $$2^\circ$$ amine to show chain isomerism are:
  • $$4$$
  • $$6$$
  • $$3$$
  • $$5$$
$$CH_3NH_2+CHCl_3+KOH \rightarrow$$ Nitrogen containing compound +$$KCl +H_2O$$. Nitrogen containing compound is:
  • $$CH_3CN$$
  • $$CH_3NHCH_3$$
  • $$CH_3-\bar{N}\equiv\overset{+}{C}$$
  • $$CH_3-\overset{+}{{N}}\equiv {C}:^-$$
$$-NH_2$$ 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) $$H_3C-CH_2-NH_2$$
3) $$(CH_3)_2NH$$
Write basicity order of the above 

1189556_307c70667d0548cda3171b91599ebc50.jpg
  • 1>2>3
  • 3>2>1
  • 1>3>2
  • 2>3>1
2) $$H_3C-CH_2-NH_2$$
3) $$(CH_3)_2NH$$
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?
$$CH_3CH_2CN\xrightarrow {H^{+}/H_2O } A \xrightarrow [ \Delta  ]{ { NH }_{ 3 } } B \xrightarrow { NaOBr } $$
  • $$CH_3CH_2CONH_2$$
  • $$CH_3CH_2COBr$$
  • $$CH_3CH_2NH_2$$
  • $$CH_3CH_2CH_2NH_2$$
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 $$NH_{3},CH_{3}NH_{2}$$ and $$(CH_{3})_{2}NH$$ is :
  • $$NH_{3}<CH_{3}NH_{2}$$ < $$(CH_{3})_{2}NH$$
  • $$(CH_3)_2NH<CH_3NH_2<NH_3$$
  • $$CH_3NH_2<NH_3<(CH_3)_2NH$$
  • $$NH_3 < (CH_3)_2NH<CH_3NH_2$$
What is the decreasing order of basicity of pri-, sec-, and tert-, ethyl amines and $$NH_3$$ ?
  • $$NH_3$$ > $$C_2H_5NH_2$$ > $$(C_2H_5)_2NH$$ > $$(C_2H_5)_3N$$
  • $$(C_2H_5)_3N$$ > $$(C_2H_5)_2NH$$ > $$C_2H_5NH_2$$ > $$NH_3$$
  • $$(C_2H_5)_2NH$$ > $$C_2H_5NH_2$$ > $$(C_2H_5)_3N$$ > $$NH_3$$
  • $$(C_2H_5)_2NH$$ > $$C_2H_5NH_2$$ > $$NH_3$$ > $$(C_2H_5)_3N$$
A $$[Cr(H_2O)_6]^{3+}$$ typically absorbs at around 574 nm. It is allowed to react with ammonia to form a new complex $$[Cr(NH_3)_6]^{3+}$$ 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 $$pK_{a}$$ value: 
I . $$CH_{2} = CHCH_{2}NH_{2}$$
II .$$ CH_{3}CH_{2}CH_{2}NH_{2}$$
III . $$CH \equiv CCH_{2}NH_{2}$$
  • $$III<II<I$$
  • $$II>I>III$$
  • $$III>II>I$$
  • $$II>III>I$$
Which of the  following will not react with sodiumnitrite and $$HCl$$?
Among the following which amine can be prepared by Gabriel phthalimide method?
  • $$C_6H_5NH_2$$
  • $$CH_3 - NH - CH_2CH_3$$
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
$$1^0, 2^0$$ and $$3^0$$ 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:
  • $$CH_{3}CH_{2}NH_{2}$$
  • $$CH_{3}CH_{2}NHCH_{3}$$
  • $$CH_{3}CONH_{2}$$
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) $$ CH_3-CH_2-NH_2 $$
(2) $$ CH_2= CH-NH_2 $$
(3) $$ CH\equiv C-NH_2 $$
(4) $$ C_6H_5-NH_2 $$ 
  • $$1 > 2 > 3 > 4$$
  • $$4 > 3 > 2 > 1$$
  • $$3 > 2 > 1 > 4$$
  • $$1 > 3 > 2 > 4$$
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 $$(HCl \ or\  H_2SO_4 )$$ 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 $$H_2O$$
  • 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 ........
  • $${ CH }_{ 3 }N_{ 2 }X$$
  • $${ C }_{ 6 }{ H }_{ 5 }{ N }_{ 2 }X$$
  • $${ C }_{ 2 }{ H }_{ 5 }{ N }_{ 2 }X$$
  • $${ C }_{ 6 }{ H }_{ 5 }{ CH }_{ 2 }N_2X$$
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?
  • $$CH_3NH_2 > (CH_3)_3N > (CH_3)_2NH > NH_3$$
  • $$(CH_3)_2NH > NH_3 > (CH_3)_3N > CH_3NH_2$$
  • $$(CH_3)_2NH > (CH_3)_3N > NH_3 > CH_3NH_2$$
  • $$(CH_3)_3N > (CH_3)_2NH > CH_3NH_2 > NH_3$$
$$HCONR\xrightarrow[pyridine ]{POCl_3}(a)+H_2O$$; (a) in the above reaction is:
  • $$RCH=NOH$$
  • $$R-N=C=O$$
  • $$R-C=N$$
  • $$R-N=C$$
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