JEE Main > Organic Compounds Containing Nitrogen

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				Q 1.   
				   
				
Correct4

				
Incorrect-1

			

			
		

		

			
			

				

					

						When primary amine reacts with chloroform in ethanolic KOH then the product is					

				

				
	
										

						

							
							

							
an isocyanide

						

					

										

						

							
							
B

							
an aldehyde

						

					

										

						

							
							
C

							
a cyanide

						

					

										

						

							
							
D

							
an alcohol.

						

					

										
					


					

						
Explanation

						

						

						

					



				

			

		

	





		

			

				Q 2.   
				   
				
Correct4

				
Incorrect-1

			

			
		

		

			
			

				

					

						The reaction of chloroform with alcoholic KOH and p-toluidine forms					

				

				
	
										

						

							
							
A

							

						

					

										

						

							
							
B

							

						

					

										

						

							
							

							

						

					

										

						

							
							
D

							

						

					

										
					


					

						
Explanation

						

						

						

					



				

			

		

	





		

			

				Q 3.   
				   
				
Correct4

				
Incorrect-1

			

			
		

		

			
			

				

					

						The correct order of increasing basic nature for the bases {tex} \mathrm { NH } _ { 3 } , \mathrm { CH } _ { 3 } \mathrm { NH } _ { 2 } {/tex} and {tex} \left( \mathrm { CH } _ { 3 } \right) _ { 2 } \mathrm { NH } {/tex} is					

				

				
	
										

						

							
							
A

							
{tex} \left( \mathrm { CH } _ { 3 } \right) _ { 2 } \mathrm { NH } < \mathrm { NH } _ { 3 } < \mathrm { CH } _ { 3 } \mathrm { NH } _ { 2 } {/tex}

						

					

										

						

							
							

							
{tex} \mathrm { NH } _ { 3 } < \mathrm { CH } _ { 3 } \mathrm { NH } _ { 2 } < \left( \mathrm { CH } _ { 3 } \right) _ { 2 } \mathrm { NH } {/tex}

						

					

										

						

							
							
C

							
{tex} \mathrm { CH } _ { 3 } \mathrm { NH } _ { 2 } < \left( \mathrm { CH } _ { 3 } \right) _ { 2 } \mathrm { NH } < \mathrm { NH } _ { 3 } {/tex}

						

					

										

						

							
							
D

							
{tex} \mathrm { CH } _ { 3 } \mathrm { NH } _ { 2 } < \mathrm { NH } _ { 3 } < \left( \mathrm { CH } _ { 3 } \right) _ { 2 } \mathrm { NH } {/tex}

						

					

										
					


					

						
Explanation

						

						




						

					



				

			

		

	





		

			

				Q 4.   
				   
				
Correct4

				
Incorrect-1

			

			
		

		

			
			

				

					

						Ethyl isocyanide on hydrolysis in acidic medium generates					

				

				
	
										

						

							
							
A

							
propanoic acid and ammonium salt

						

					

										

						

							
							
B

							
ethanoic acid and ammonium salt

						

					

										

						

							
							
C

							
methylamine salt and ethanoic acid

						

					

										

						

							
							

							
ethylamine salt and methanoic acid

						

					

										
					


					

						
Explanation

						

						


						

					



				

			

		

	





		

			

				Q 5.   
				   
				
Correct4

				
Incorrect-1

			

			
		

		

			
			

				

					

						Which one of the following methods is neither meant for the synthesis nor for separation of amines?					

				

				
	
										

						

							
							
A

							
Curtius reaction

						

					

										

						

							
							

							
Wurtz reaction

						

					

										

						

							
							
C

							
Hofmann method

						

					

										

						

							
							
D

							
Hinsberg method

						

					

										
					


					

						
Explanation

						

						


						

					



				

			

		

	





		

			

				Q 6.   
				   
				
Correct4

				
Incorrect-1

			

			
		

		

			
			

				

					

						Amongst the following the most basic compound is					

				

				
	
										

						

							
							
A

							
p-nitroaniline

						

					

										

						

							
							
B

							
acetanilide

						

					

										

						

							
							
C

							
aniline

						

					

										

						

							
							

							
benzylamine

						

					

										
					


					

						
Explanation

						

						


						

					



				

			

		

	





		

			

				Q 7.   
				   
				
Correct4

				
Incorrect-1

			

			
		

		

			
			

				

					

						An organic compound having molecular mass 60 is found to contain {tex} \mathrm { C } = 20 \% , \mathrm { H } = 6.67 \% {/tex} and {tex} \mathrm { N } = 46.67 \% {/tex} while rest is
oxygen. On heating it gives {tex} \mathrm { NH } _ { 3 } {/tex} along with a solid residue. The solid residue give violet colour with alkaline copper sulphate solution. The compound is
					

				

				
	
										

						

							
							
A

							
{tex} \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CONH } _ { 2 } {/tex}

						

					

										

						

							
							

							
{tex} \left( \mathrm { NH } _ { 2 } \right) _ { 2 } \mathrm { CO } {/tex}

						

					

										

						

							
							
C

							
{tex} \mathrm { CH } _ { 3 } \mathrm { CONH } _ { 2 } {/tex}

						

					

										

						

							
							
D

							
{tex} \mathrm { CH } _ { 3 } \mathrm { NCO } {/tex}

						

					

										
					


					

						
Explanation

						

						





						

					



				

			

		

	





		

			

				Q 8.   
				   
				
Correct4

				
Incorrect-1

			

			
		

		

			
			

				

					

						Which one of the following is the strongest base in aqueous solution?					

				

				
	
										

						

							
							
A

							
Methylamine

						

					

										

						

							
							
B

							
Trimethylamine

						

					

										

						

							
							
C

							
Aniline

						

					

										

						

							
							

							
Dimethylamine.

						

					

										
					


					

						
Explanation

						

						



						

					



				

			

		

	





		

			

				Q 9.   
				   
				
Correct4

				
Incorrect-1

			

			
		

		

			
			

				

					

						In the chemical reaction, 
{tex} \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { NH } _ { 2 } + \mathrm { CHCl } _ { 3 } + 3 \mathrm { KOH } \rightarrow ( \mathrm { A } ) + (\mathrm{B})+3 \mathrm { H } _ { 2 } \mathrm { O } , {/tex}the
 compounds {tex} ( \mathrm { A } ) {/tex} and {tex} ( \mathrm { B } ) {/tex} are respectively					

				

				
	
										

						

							
							

							
{tex} \mathrm { C } _ { 2 } \mathrm { H } _ { 5 } \mathrm { NC } {/tex} and {tex} 3\mathrm { KCl } {/tex}

						

					

										

						

							
							
B

							
{tex} \mathrm { C } _ { 2 } \mathrm { H } _ { 5 } \mathrm { CN } {/tex} and {tex} 3\mathrm { KCl } {/tex}

						

					

										

						

							
							
C

							
{tex} \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CONH } _ { 2 } {/tex} and {tex}3 \mathrm { KCl } {/tex}

						

					

										

						

							
							
D

							
{tex} \mathrm { C } _ { 2 } \mathrm { H } _ { 5 } \mathrm { NC } {/tex} and {tex} \mathrm { K } _ { 2 } \mathrm { CO } _ { 3 } {/tex}

						

					

										
					


					

						
Explanation

						

						

						

					



				

			

		

	





		

			

				Q 10.   
				   
				
Correct4

				
Incorrect-1

			

			
		

		

			
			

				

					

						In the chemical reactions,

the compounds {tex}  'A' {/tex} and {tex}' B ' {/tex}  respectively are					

				

				
	
										

						

							
							
A

							
nitrobenzene and fluorobenzene

						

					

										

						

							
							
B

							
phenol and benzene

						

					

										

						

							
							

							
benzene diazonium chloride and fluorobenzene

						

					

										

						

							
							
D

							
nitrobenzene and chlorobenzene

						

					

										
					


					

						
Explanation

						

						







						

					



				

			

		

	





		

			

				Q 11.   
				   
				
Correct4

				
Incorrect-1

			

			
		

		

			
			

				

					

						A compound with molecular mass 180 is acylated with {tex} \mathrm { CH } _ { 3 } \mathrm { COCl } {/tex} to get a compound with molecular mass {tex} 390 . {/tex} The number of amino groups present per molecule of the former compound is:					

				

				
	
										

						

							
							
A

							
2

						

					

										

						

							
							

							
5

						

					

										

						

							
							
C

							
4

						

					

										

						

							
							
D

							
6

						

					

										
					


					

						
Explanation

						

						





						

					



				

			

		

	





		

			

				Q 12.   
				   
				
Correct4

				
Incorrect-1

			

			
		

		

			
			

				

					

						An organic compound A upon reacting with {tex} \mathrm { NH } _ { 3 } {/tex} gives B. On heating B gives C. C in presence of {tex} \mathrm { KOH} {/tex} reacts with {tex}\mathrm {  Br_2}{/tex} to given {tex} \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { NH } _ { 2 } {/tex} . A is:					

				

				
	
										

						

							
							
A

							
{tex} \mathrm { CH } _ { 3 } \mathrm { COOH } {/tex}

						

					

										

						

							
							
B

							
{tex} \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { COOH } {/tex}

						

					

										

						

							
							
C

							

						

					

										

						

							
							

							
{tex} \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { COOH } {/tex}

						

					

										
					


					

						
Explanation

						

						




						

					



				

			

		

	





		

			

				Q 13.   
				   
				
Correct4

				
Incorrect-1

			

			
		

		

			
			

				

					

						The gas leaked from a storage tank of the Union Carbide plant in Bhopal gas tragedy was:					

				

				
	
										

						

							
							

							
Methyl isocyanate

						

					

										

						

							
							
B

							
Methylamine

						

					

										

						

							
							
C

							
Ammonia

						

					

										

						

							
							
D

							
Phosgene

						

					

										
					


					

						
Explanation

						

						

						

					



				

			

		

	





		

			

				Q 14.   
				   
				
Correct4

				
Incorrect-1

			

			
		

		

			
			

				

					

						On heating an aliphatic primary amine with chloroform and ethanolic potassium hydroxide, the organic compound formed is:					

				

				
	
										

						

							
							
A

							
an alkanol

						

					

										

						

							
							
B

							
an alkanediol

						

					

										

						

							
							
C

							
an alkyl cyanide

						

					

										

						

							
							

							
an alkyl isocyanide

						

					

										
					


					

						
Explanation

						

						

						

					



				

			

		

	





		

			

				Q 15.   
				   
				
Correct4

				
Incorrect-1

			

			
		

		

			
			

				

					

						Considering the basic strength of amines in aqueous solution, which one has the smallest {tex} p K _ { b } {/tex} value?					

				

				
	
										

						

							
							

							
{tex} \left( \mathrm { CH } _ { 3 } \right) _ { 2 } \mathrm { NH } {/tex}

						

					

										

						

							
							
B

							
{tex} \mathrm { CH } _ { 3 } \mathrm { NH } _ { 2 } {/tex}

						

					

										

						

							
							
C

							
{tex} \left( \mathrm { CH } _ { 3 } \right) _ { 3 } \mathrm { N } {/tex}

						

					

										

						

							
							
D

							
{tex} \mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { NH } _ { 2 } {/tex}

						

					

										
					


					

						
Explanation

						

						



						

					



				

			

		

	





		

			

				Q 16.   
				   
				
Correct4

				
Incorrect-1

			

			
		

		

			
			

				

					

						In the reaction

the product {tex} E {/tex} is :					

				

				
	
										

						

							
							

							

						

					

										

						

							
							
B

							

						

					

										

						

							
							
C

							

						

					

										

						

							
							
D

							

						

					

										
					


					

						
Explanation

						

						

						

					



				

			

		

	





		

			

				Q 17.   
				   
				
Correct4

				
Incorrect-1

			

			
		

		

			
			

				

					

						In the Hofmann bromamide degradation reaction, the number of moles of {tex} \mathrm { NaOH } {/tex} and {tex} \mathrm { Br } _ { 2 } {/tex} used per mole of amine produced are:					

				

				
	
										

						

							
							
A

							
Two moles of {tex} \mathrm { NaOH } {/tex} and two moles of {tex}\mathrm { Br_2} {/tex}

						

					

										

						

							
							

							
Four moles of {tex} \mathrm { NaOH } {/tex} and one mole of {tex} \mathrm { Br } _ { 2 } {/tex}

						

					

										

						

							
							
C

							
One mole of {tex} \mathrm { NaOH } {/tex} and one mole of {tex} \mathrm { Br } _ { 2 } {/tex}

						

					

										

						

							
							
D

							
Four moles of {tex} \mathrm { NaOH } {/tex} and two moles of {tex} \mathrm { Br_2} {/tex}

						

					

										
					


					

						
Explanation

						

						


						

					



				

			

		

	





		

			

				Q 18.   
				   
				
Correct4

				
Incorrect-1

			

			
		

		

			
			

				

					

						When primary amine reacts with chloroform in ethanolic {tex}\mathrm{KOH}{/tex}  then the product is					

				

				
	
										

						

							
							

							
an isocyanide

						

					

										

						

							
							
B

							
an aldehyde

						

					

										

						

							
							
C

							
a cyanide

						

					

										

						

							
							
D

							
an alcohol.

						

					

										
					


					

						
Explanation

						

						


						

					



				

			

		

	





		

			

				Q 19.   
				   
				
Correct4

				
Incorrect-1

			

			
		

		

			
			

				

					

						The correct order of increasing basic nature for the bases {tex} \mathrm { NH } _ { 3 } , \mathrm { CH } _ { 3 } \mathrm { NH } _ { 2 } {/tex} and {tex} \left( \mathrm { CH } _ { 3 } \right) _ { 2 } \mathrm { NH } {/tex} is					

				

				
	
										

						

							
							
A

							
{tex} \mathrm { CH } _ { 3 } \mathrm { NH } _ { 2 } < \mathrm { NH } _ { 3 } < \left( \mathrm { CH } _ { 3 } \right) _ { 2 } \mathrm { NH } {/tex}

						

					

										

						

							
							
B

							
{tex} \left( \mathrm { CH } _ { 3 } \right) _ { 2 } \mathrm { NH } < \mathrm { NH } _ { 3 } < \mathrm { CH } _ { 3 } \mathrm { NH } _ { 2 } {/tex}

						

					

										

						

							
							

							
{tex} \mathrm { NH } _ { 3 } < \mathrm { CH } _ { 3 } \mathrm { NH } _ { 2 } < \left( \mathrm { CH } _ { 3 } \right) _ { 2 } \mathrm { NH } {/tex}

						

					

										

						

							
							
D

							
{tex} \mathrm { CH } _ { 3 } \mathrm { NH } _ { 2 } < \left( \mathrm { CH } _ { 3 } \right) _ { 2 } \mathrm { NH } < \mathrm { NH } _ { 3 } {/tex}

						

					

										
					


					

						
Explanation

						

						


						

					



				

			

		

	





		

			

				Q 20.   
				   
				
Correct4

				
Incorrect-1

			

			
		

		

			
			

				

					

						Ethyl isocyanide on hydrolysis in acidic medium generates					

				

				
	
										

						

							
							

							
ethylamine salt and methanoic acid

						

					

										

						

							
							
B

							
propanoic acid and ammonium salt

						

					

										

						

							
							
C

							
ethanoic acid and ammonium salt

						

					

										

						

							
							
D

							
methylamine salt and ethanoic acid.

						

					

										
					


					

						
Explanation

						

						


						

					



				

			

		

	





		

			

				Q 21.   
				   
				
Correct4

				
Incorrect-1

			

			
		

		

			
			

				

					

						The reaction of chloroform with alcoholic {tex}\mathrm {KOH}{/tex} and {tex} p {/tex} -toluidine forms					

				

				
	
										

						

							
							
A

							

						

					

										

						

							
							
B

							

						

					

										

						

							
							
C

							

						

					

										

						

							
							

							

						

					

										
					


					

						
Explanation

						

						


						

					



				

			

		

	





		

			

				Q 22.   
				   
				
Correct4

				
Incorrect-1

			

			
		

		

			
			

				

					

						Which one of the following does not have {tex} s p ^ { 2 } {/tex} hybridized carbon?					

				

				
	
										

						

							
							
A

							
Acetone

						

					

										

						

							
							
B

							
Acetic acid

						

					

										

						

							
							

							
Acetonitrile

						

					

										

						

							
							
D

							
Acetamide.

						

					

										
					


					

						
Explanation

						

						

						

					



				

			

		

	





		

			

				Q 23.   
				   
				
Correct4

				
Incorrect-1

			

			
		

		

			
			

				

					

						Which of the following is the strongest base?					

				

				
	
										

						

							
							
A

							

						

					

										

						

							
							
B

							

						

					

										

						

							
							
C

							

						

					

										

						

							
							

							

						

					

										
					


					

						
Explanation

						

						


						

					



				

			

		

	





		

			

				Q 24.   
				   
				
Correct4

				
Incorrect-1

			

			
		

		

			
			

				

					

						Which one of the following methods is neither meant for the synthesis nor for separation of amines?					

				

				
	
										

						

							
							
A

							
Hinsberg method

						

					

										

						

							
							
B

							
Hofmann method

						

					

										

						

							
							

							
Wurtz reaction

						

					

										

						

							
							
D

							
Curtius reaction

						

					

										
					


					

						
Explanation

						

						


						

					



				

			

		

	





		

			

				Q 25.   
				   
				
Correct4

				
Incorrect-1

			

			
		

		

			
			

				

					

						Amongst the following the most basic compound is					

				

				
	
										

						

							
							

							
benzylamine

						

					

										

						

							
							
B

							
aniline

						

					

										

						

							
							
C

							
acetanilide

						

					

										

						

							
							
D

							
{tex} p {/tex} -nitroaniline

						

					

										
					


					

						
Explanation

						

						


						

					



				

			

		

	













 






	

		

			

			

















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