Back to AMINES
Your Progress
0 / 82 Answered
0
Correct
0
Incorrect
0%
Accuracy
JEE • CHEMISTRY • AMINES
Amines practice · Medium
Try a question, then open “View answer” to check it. Sign in to submit answers and save progress.
Practice format and chapter quiz
These sets use single-correct-answer MCQs. They do not cover every JEE Main or JEE Advanced question format and are not full-length mock papers.
Take a chapter quiz →
Showing 31-60 of 82 questions
31
Medium
31 of 82
Remembering
+4 | -1
In sodium fusion test of organic compounds, the nitrogen of the organic compound is converted into
View answer and explanation
Correct option: B
Sodium cyanide
Option B (Sodium cyanide) is correct because in the sodium fusion test, nitrogen from the organic compound reacts with sodium to form sodium cyanide.
32
Medium
32 of 82
Understanding
+4 | -1
Ethylamine is heated with in the presence of . The product formed is
View answer and explanation
Correct option: D
Ethyl isothiocyanate
Option D (Ethyl isothiocyanate) is correct because the reaction of ethylamine with in the presence of results in the formation of ethyl isothiocyanate, known as the Hoffmann mustard oil reaction.
33
Medium
33 of 82
Understanding
+4 | -1
Which of the following groups does not decrease the basic strength of aniline?
View answer and explanation
Correct option: A
Option A () is correct because electron-releasing groups like methoxy () increase the electron density on the nitrogen atom of aniline, thus increasing its basic strength.
34
Medium
34 of 82
Analyzing
+4 | -1
Which of the following will produce isopropyl amine-
View answer and explanation
Correct option: C
I, III
Option C (I, III) is correct because both reactions produce isopropyl amine (). Reaction I involves the reduction of an oxime derived from acetone, and Reaction III involves the reaction of isopropyl chloride with ammonia.
35
Medium
35 of 82
Understanding
+4 | -1
Name the product(s) formed during the reaction of primary aliphatic amines with nitrous acid at room temperature?
View answer and explanation
Correct option: C
Both (1) and (2)
Option C (Both (1) and (2)) is correct because primary aliphatic amines react with nitrous acid to form diazonium salts, which are unstable and decompose to form alcohols and nitrogen gas.
36
Medium
36 of 82
Remembering
+4 | -1
Ceric ammonium nitrate and are used for the identification of functional groups present in ….. and …… respectively.
View answer and explanation
Correct option: C
alcohol, amine
Option C (alcohol, amine) is correct because ceric ammonium nitrate is used to identify alcohols, while is used to identify amines.
37
Medium
37 of 82
Understanding
+4 | -1
Hinsber’s reagent does not react with
View answer and explanation
Correct option: C
Option C is correct because Hinsberg's reagent reacts with primary and secondary amines, but not with tertiary amines due to the absence of an acidic hydrogen atom on the nitrogen.
38
Medium
38 of 82
Remembering
+4 | -1
The test that is done for the differentiation of primary amines from secondary and tertiary amine is:
View answer and explanation
Correct option: D
Carbylamine test
Option D (Carbylamine test) is correct because the carbylamine test is specifically used to detect the presence of primary amines, differentiating them from secondary and tertiary amines.
39
Medium
39 of 82
Remembering
+4 | -1
An aliphatic amine on treatment with alcoholic carbon disulphide and mercuric chloride forms isothiocyanate, the reaction is known as
View answer and explanation
Correct option: C
Hofmann's mustard oil reaction
Option C (Hofmann's mustard oil reaction) is correct because this reaction involves the conversion of an aliphatic amine to an isothiocyanate using alcoholic carbon disulfide and mercuric chloride.
40
Medium
40 of 82
Remembering
+4 | -1
When aniline reacts with oil of bitter almonds condensation takes place and benzal derivative is formed. This is known as
View answer and explanation
Correct option: C
Schiff's base
Option C (Schiff's base) is correct because the condensation product of an aldehyde (like benzaldehyde) and a primary amine (like aniline) is called a Schiff's base.
41
Medium
41 of 82
Understanding
+4 | -1
Why are amines less acidic than alcohols of comparable molecular masses?
View answer and explanation
Correct option: C
Because bond is less polar than bond
Option C is correct because the O-H bond is more polar than the N-H bond due to the higher electronegativity of oxygen compared to nitrogen, making alcohols more acidic.
42
Medium
42 of 82
Analyzing
+4 | -1
cannot represent:
View answer and explanation
Correct option: D
Quaternary salt
Option D (Quaternary salt) is correct because a quaternary ammonium salt requires four alkyl or aryl groups attached to the nitrogen atom, which cannot be achieved with the given formula C3H9N.
43
Medium
43 of 82
Analyzing
+4 | -1
Acetamide and ethylamine can be distinguished by reacting with
View answer and explanation
Correct option: B
Aqueous and heat
Option B (Aqueous and heat) is correct because acetamide will produce ammonia gas upon heating with NaOH, while ethylamine will not react.
44
Medium
44 of 82
Understanding
+4 | -1
What would be the side products formed with primary amine in the Hofmann bromamide degradation reaction?
View answer and explanation
Correct option: C
Option C () is correct because the Hofmann bromamide degradation reaction produces a primary amine along with sodium bromide, water, and sodium carbonate as side products.
45
Medium
45 of 82
Analyzing
+4 | -1
A gaseous carbon compound is soluable in dilute . The solution on treating with gives off nitrogen leaving behind a solution which smells of wood spirit. The carbon compound is
View answer and explanation
Correct option: D
Option D () is correct because methylamine dissolves in dilute HCl, and upon treatment with NaNO2, it releases nitrogen and forms methyl alcohol, which has a wood spirit smell.
Explore Other Chapters in CHEMISTRY
View All →
46
Medium
46 of 82
Analyzing
+4 | -1
Among the following, the strongest base is:
View answer and explanation
Correct option: D
Option D () is the strongest base because aliphatic amines are more basic than aromatic amines due to resonance stabilization in the latter.
47
Medium
47 of 82
Remembering
+4 | -1
Nitrobenzene on reduction with and water gives:
View answer and explanation
Correct option: D
Phenylhydroxylamine
The correct answer is Phenylhydroxylamine because nitrobenzene undergoes reduction with and water to form phenylhydroxylamine.
48
Medium
48 of 82
Understanding
+4 | -1
Given below are two statements:
Statement I: Aniline does not undergo Friedel-Crafts alkylation reaction.
Statement II: Aniline cannot be prepared through Gabriel synthesis.
In the light of the above statements, choose the correct answer from the options given below:
Statement I: Aniline does not undergo Friedel-Crafts alkylation reaction.
Statement II: Aniline cannot be prepared through Gabriel synthesis.
In the light of the above statements, choose the correct answer from the options given below:
View answer and explanation
Correct option: D
Both statement I and Statement II are true
Option D (Both statement I and Statement II are true) is correct because aniline does not undergo Friedel-Crafts alkylation and cannot be prepared via Gabriel synthesis.
49
Medium
49 of 82
Understanding
+4 | -1
A biodegradable polyamide can be made from
View answer and explanation
Correct option: C
glycine and aminocaproic acid
Option C (glycine and aminocaproic acid) is correct because nylon-2-nylon-6, a biodegradable polyamide, is made from these two monomers.
50
Medium
50 of 82
Analyzing
+4 | -1
chloroaniline and anilium hydrochloride can be distinguished by:
View answer and explanation
Correct option: B
Option B is correct because anilinium hydrochloride will react with to produce a white precipitate of AgCl, while p-chloroaniline will not.
51
Medium
51 of 82
Analyzing
+4 | -1
Assertion: Amines are more basic than esters and ethers.
Reason: Nitrogen is less electronegative than oxygen. It is in better position to accommodate the positive charge on the proton.
Reason: Nitrogen is less electronegative than oxygen. It is in better position to accommodate the positive charge on the proton.
View answer and explanation
Correct option: A
If both assertion and reason are true and reason is the correct explanation of assertion
The correct answer is A because amines are more basic than esters and ethers due to nitrogen being less electronegative than oxygen, making it better at accommodating the positive charge on the proton.
52
Medium
52 of 82
Remembering
+4 | -1
The reduction of is called:
View answer and explanation
Correct option: C
Mendius reduction
Option C (Mendius reduction) is correct because it specifically refers to the reduction of nitriles (like CH3CN) to primary amines (like CH3CH2NH2).
53
Medium
53 of 82
Understanding
+4 | -1
Statement-I : and amines are hydrogen bonding donors, while and amines are hydrogen bonding acceptors.
Statement-II: Low molecular weight amines are soluble in water.
Statement-II: Low molecular weight amines are soluble in water.
View answer and explanation
Correct option: A
Both statement I and II are correct
Option A (Both statement I and II are correct) is correct because primary and secondary amines can donate and accept hydrogen bonds, and low molecular weight amines are soluble in water due to their polarity.
54
Medium
54 of 82
Understanding
+4 | -1
The alkyl or benzyl halide on reaction with an ethanolic solution of ammonia yield a product via
View answer and explanation
Correct option: A
nucleophilic substitution reaction
Option B (Decreases) is correct because conductivity is the conductance of a unit volume of solution. Upon dilution, the number of ions per unit volume decreases, hence conductivity decreases.
55
Medium
55 of 82
Analyzing
+4 | -1
Which of the following is the most basic?
View answer and explanation
Correct option: A
p-Phenylenediamine
Option A (p-Phenylenediamine) is correct because the presence of two electron-donating amino groups in the para position increases the electron density on the nitrogen atoms, making it the most basic.
56
Medium
56 of 82
Analyzing
+4 | -1
is heated with sodium and extracted with water and then is added. The white ppt. obtained is of:
View answer and explanation
Correct option: A
Option D (If both Assertion & Reason are False) is correct because a 2px-2py transition does not produce a spectral line, and not only Balmer lines are observed in the visible region.
57
Medium
57 of 82
Understanding
+4 | -1
The gas evolved when methyl amine reacts with nitrous acid is
View answer and explanation
Correct option: B
Option B () is correct because methyl amine reacts with nitrous acid to form methyl diazonium ion, which decomposes to give methanol and nitrogen gas.
58
Medium
58 of 82
Application
+4 | -1
In the given reaction what will be the product
View answer and explanation
Correct option: B
Option B () is correct because N-alkyl formamides, when dehydrated with in the presence of pyridine, give isocyanides.
59
Medium
59 of 82
Understanding
+4 | -1
Choose the correct option from the following.
View answer and explanation
Correct option: C
Both (1) and (2)
Option C (Both (1) and (2)) is correct because the basic character of an amine depends on the ease of cation formation and the stability of the resulting cation.
60
Medium
60 of 82
Analyzing
+4 | -1
Assertion: In order to convert to pure Gabriel phthalimide synthesis can be used.
Reason: With proper choice of alkyl halides, phthalimide synthesis can be used to prepare or amines.
Reason: With proper choice of alkyl halides, phthalimide synthesis can be used to prepare or amines.
View answer and explanation
Correct option: C
If the assertion is true but the reason is false
Option C is correct. The assertion that Gabriel phthalimide synthesis can be used to convert R-Cl to pure R-NH2 is true, but the reason that it can be used to prepare 1°, 2°, or 3° amines is false. It is only suitable for preparing primary amines.
Revision notes and key takeaways
Review AMINES in your textbook or class notes, then use this set to check your understanding.
Showing 31-60 of 82 questions
Continue Your Practice
📚 Switch Set (MEDIUM)
0
/82
0✓
0✗
0% Accuracy
