Amines & Nitrogen Compounds · JEE Main previous year questions

Match List I with List II | List I (Test) | List II (Functional group / Class of Compound) | | :--- | :--- | | A. Molisch's Test | I. Peptide | | B. Biuret Test | II. Carbohydrate | | C. Carbylamine Test | III. Primary amine | | D. Schiff's Test | IV. Aldehyde | Choose the correct answer from the options given below :

1. A.(A) - III, (B) - IV, (C) - II, (D) - I
2. B.(A) - II, (B) - I, (C) - III, (D) - IV
3. C.(A) - III, (B) - IV, (C) - I, (D) - II
4. D.(A) - I, (B) - II, (C) - III, (D) - IV

The correct order of basicity of oxides of vanadium is :

1. A.${\mathrm{V}}_2{\mathrm{O}}_3>{\mathrm{V}}_2{\mathrm{O}}_5>{\mathrm{V}}_2{\mathrm{O}}_4$
2. B.${\mathrm{V}}_2{\mathrm{O}}_3>{\mathrm{V}}_2{\mathrm{O}}_4>{\mathrm{V}}_2{\mathrm{O}}_5$
3. C.${\mathrm{V}}_2{\mathrm{O}}_5>{\mathrm{V}}_2{\mathrm{O}}_4>{\mathrm{V}}_2{\mathrm{O}}_3$
4. D.${\mathrm{V}}_2{\mathrm{O}}_4>{\mathrm{V}}_2{\mathrm{O}}_3>{\mathrm{V}}_2{\mathrm{O}}_5$

1. A.
2. B.
3. C.
4. D.

1. A.B and C
2. B.A and D
3. C.A and B
4. D.Only B

Chiral complex from the following is : Here en = ethylene diamine

1. A.$\mathrm{cis}-[\mathrm{PtC}{\mathrm{l}}_2(\mathrm{en}{)}_2{]}^{2+}$
2. B.$\mathrm{trans}-[\mathrm{Co}(\mathrm{N}{\mathrm{H}}_3{)}_4\mathrm{C}{\mathrm{l}}_2{]}^{+}$
3. C.$\mathrm{trans}-[\mathrm{PtC}{\mathrm{l}}_2(\mathrm{en}{)}_2{]}^{2+}$
4. D.$\mathrm{cis}-[\mathrm{PtC}{\mathrm{l}}_2(\mathrm{N}{\mathrm{H}}_3{)}_2]$

The correct order in aqueous medium of basic strength in case of methyl substituted amines is :

1. A.$\mathrm{N}{\mathrm{H}}_3>\mathrm{M}{\mathrm{e}}_3\mathrm{N}>\mathrm{MeN}{\mathrm{H}}_2>\mathrm{M}{\mathrm{e}}_2\mathrm{NH}$
2. B.$\mathrm{M}{\mathrm{e}}_3\mathrm{N}>\mathrm{M}{\mathrm{e}}_2\mathrm{NH}>\mathrm{MeN}{\mathrm{H}}_2>\mathrm{N}{\mathrm{H}}_3$
3. C.$\mathrm{M}{\mathrm{e}}_2\mathrm{NH}>\mathrm{MeN}{\mathrm{H}}_2>\mathrm{M}{\mathrm{e}}_3\mathrm{N}>\mathrm{N}{\mathrm{H}}_3$
4. D.$\mathrm{M}{\mathrm{e}}_2\mathrm{NH}>\mathrm{M}{\mathrm{e}}_3\mathrm{N}>\mathrm{MeN}{\mathrm{H}}_2>\mathrm{N}{\mathrm{H}}_3$

Match List I with List II $$\begin{array}{llll}& \text{List I (Amines)}& & \text{List II }(\mathrm{p}{\mathrm{K}}_{\mathrm{b}})\\ \text{A.}& \text{Aniline}& \text{I.}& 3.25\\ \text{B.}& \text{Ethanamine}& \text{II.}& 3.00\\ \text{C.}& \text{N-Ethylethanamine}& \text{III.}& 9.38\\ \text{D.}& \text{N, N-Diethylethanamine}& \text{IV.}& 3.29\end{array}$$ Choose the correct answer from the options given below :

1. A.A-III, B-II, C-I, D-IV
2. B.A-III, B-II, C-IV, D-I
3. C.A-III, B-IV, C-II, D-I
4. D.A-I, B-IV, C-II, D-III

Match List I with List II $$\begin{array}{llll}& \text{List I Isomeric pairs}& & \text{List II Type of isomers}\\ \text{A.}& \text{Propanamine and N-Methylethanamine}& \text{I.}& \text{Metamers}\\ \text{B.}& \text{Hexan-2-one and Hexan-3-one}& \text{II.}& \text{Positional isomers}\\ \text{C.}& \text{Ethanamide and Hydroxyethanimine}& \text{III.}& \text{Functional isomers}\\ \text{D.}& \text{o-nitrophenol and p-nitrophenol}& \text{IV.}& \text{Tautomers}\end{array}$$ Choose the correct answer from the options given below :

1. A.A-III, B-I, C-IV, D-II
2. B.A-III, B-IV, C-I, D-II
3. C.A-II, B-III, C-I, D-IV
4. D.A-IV, B-III, C-I, D-II

1. A.White
2. B.Yellow
3. C.Red
4. D.Blue

Given below are two statements: Statement I : Pure Aniline and other arylamines are usually colourless. Statement II : Arylamines get coloured on storage due to atmospheric reduction. In the light of the above statements, choose the most appropriate answer from the options given below :

1. A.Both Statement I and Statement II are correct
2. B.Statement I is correct but Statement II is incorrect
3. C.Both Statement I and Statement II are incorrect
4. D.Statement I is incorrect but Statement II is correct

The reaction between X and Y is first order with respect to X and zero order with respect to Y. | Experiment | $\frac{[X]}{\mathrm{mol}{\mathrm{L}}^{-1}}$ | $\frac{[Y]}{\mathrm{mol}{\mathrm{L}}^{-1}}$ | $\frac{Initialrate}{\mathrm{mol}{\mathrm{L}}^{-1}\mathrm{mi}{\mathrm{n}}^{-1}}$ | | :--- | :--- | :--- | :--- | | I | 0.1 | 0.1 | $2\times 10^{-3}$ | | II | L | 0.2 | $4\times 10^{-3}$ | | III | 0.4 | 0.4 | $M\times 10^{-3}$ | | IV | 0.1 | 0.2 | $2\times 10^{-3}$ | Examine the data of table and calculate ratio of numerical values of M and L. (Nearest Integer)

Octahedral complexes of copper(II) undergo structural distortion (Jahn-Teller). Which one of the given copper (II) complexes will show the maximum structural distortion? (en - ethylenediamine; ${\mathrm{H}}_2\mathrm{N}-\mathrm{C}{\mathrm{H}}_2-\mathrm{C}{\mathrm{H}}_2-\mathrm{N}{\mathrm{H}}_2$)

1. A.$[\mathrm{Cu}({\mathrm{H}}_2\mathrm{O}{)}_6]\mathrm{S}{\mathrm{O}}_4$
2. B.$[\mathrm{Cu}(\mathrm{en})({\mathrm{H}}_2\mathrm{O}{)}_4]\mathrm{S}{\mathrm{O}}_4$
3. C.$\text{cis-}[\mathrm{Cu}(\mathrm{en}{)}_2\mathrm{C}{\mathrm{l}}_2]$
4. D.$\text{trans-}[\mathrm{Cu}(\mathrm{en}{)}_2\mathrm{C}{\mathrm{l}}_2]$

1. A.
2. B.
3. C.
4. D.

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A : Aniline on nitration yields ortho, meta & para nitro derivatives of aniline. Reason R : Nitrating mixture is a strong acidic mixture. In the light of the above statements, choose the correct answer from the options given below

1. A.Both A and R are true and R is the correct explanation of A
2. B.Both A and R are true but R is NOT the correct explanation of A
3. C.A is true but R is false
4. D.A is false but R is true

Match List I with List II. | List I | | List II | | :--- | :--- | :--- | | (A) Benzenesulphonyl chloride | (I) | Test for primary amines | | (B) Hoffmann bromamide reaction | (II) | Anti Saytzeff | | (C) Carbylamine reaction | (III) | Hinsberg reagent | | (D) Hoffmann orientation | (IV) | Known reaction of Isocyanates. | Choose the correct answer from the options given below:

1. A.A-IV, B-III, C-II, D-I
2. B.A-IV, B-II, C-I, D-III
3. C.A-III, B-IV, C-I, D-II
4. D.A-IV, B-III, C-I, D-II

Match List - I with List - II. $$\begin{array}{llll}& \begin{array}{l}\text{List - I}\\ \text{(Mixture)}\end{array}& & \begin{array}{l}\text{List - II}\\ \text{(Purification Process)}\end{array}\\ \text{(A)}& \text{Chloroform \& Aniline}& \text{(I)}& \text{Steam distillation}\\ \text{(B)}& \text{Benzoic acid \& Naphthalene}& \text{(II)}& \text{Sublimation}\\ \text{(C)}& \text{Water \& Aniline}& \text{(III)}& \text{Distillation}\\ \text{(D)}& \text{Naphthalene \& Sodium chloride}& \text{(IV)}& \text{Crystallisation}\end{array}$$ Choose the correct answer from the options given below :

1. A.(A) - (IV), (B) - (III), (C) - (I), (D) - (II)
2. B.(A) - (III), (B) - (I), (C) - (IV), (D) - (II)
3. C.(A) - (III), (B) - (IV), (C) - (II), (D) - (I)
4. D.(A) - (III), (B) - (IV), (C) - (I), (D) - (II)

Among the following ores Bauxite, Siderite, Cuprite, Calamine, Haematite, Kaolinite, Malachite, Magnetite, Sphalerite, Limonite, Cryolite, the number of principal ores of iron is _____________.

1. A.$(\mathrm{A})>(\mathrm{B})>(\mathrm{C})>(\mathrm{D})$
2. B.$(\mathrm{A})>(\mathrm{C})>(\mathrm{D})>(\mathrm{B})$
3. C.$(\mathrm{C})>(\mathrm{A})>(\mathrm{D})>(\mathrm{B})$
4. D.$(\mathrm{C})>(\mathrm{D})>(\mathrm{B})>(\mathrm{A})$

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Experimental reaction of $\mathrm{C}{\mathrm{H}}_3\mathrm{Cl}$ with aniline and anhydrous $\mathrm{AlC}{\mathrm{l}}_3$ does not give $o$ and $p$-methylaniline. Reason (R): The $-\mathrm{N}{\mathrm{H}}_2$ group of aniline becomes deactivating because of salt formation with anhydrous $\mathrm{AlC}{\mathrm{l}}_3$ and hence yields $m$-methyl aniline as the product. In the light of the above statements, choose the most appropriate answer from the options given below :

1. A.Both A and R are true and (R) is the correct explanation of (A).
2. B.Both A and R are true but (R) is not the correct explanation of (A).
3. C.(A) is true, but (R) is false.
4. D.(A) is false, but (R) is true.

Match List - I with List - II : $$\begin{array}{llll}& \text{List-I (Oxide)}& & \text{List-II (Nature)}\\ \text{(A)}& \mathrm{C}{\mathrm{l}}_2{\mathrm{O}}_7& \text{(I)}& \text{Amphoteric}\\ \text{(B)}& \mathrm{N}{\mathrm{a}}_2\mathrm{O}& \text{(II)}& \text{Basic}\\ \text{(C)}& \mathrm{A}{\mathrm{l}}_2{\mathrm{O}}_3& \text{(III)}& \text{Neutral}\\ \text{(D)}& {\mathrm{N}}_2\mathrm{O}& \text{(IV)}& \text{Acidic}\end{array}$$ Choose the correct answer from the options given below :

1. A.(A) - (IV), (B) - (III), (C) - (I), (D) - (II)
2. B.(A) - (IV), (B) - (II), (C) - (I), (D) - (III)
3. C.(A) - (II), (B) - (IV), (C) - (III), (D) - (I)
4. D.(A) - (I), (B) - (II), (C) - (III), (D) - (IV)

1. A.(A) and (C) are correct statements.
2. B.(A) and (D) are correct statements.
3. C.(B) and (D) are correct statements.
4. D.(B) and (C) are correct statements.

1. A.
2. B.
3. C.
4. D.

1. A.
2. B.
3. C.
4. D.

The neutralization occurs when $10\mathrm{mL}$ of $0.1\mathrm{M}$ acid 'A' is allowed to react with $30\mathrm{mL}$ of $0.05\mathrm{M}$ base $\mathrm{M}(\mathrm{OH}{)}_2$. The basicity of the acid 'A' is ____. [M is a metal]