InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
What is the hybridisation of N in (CH3)3N and shape of (CH3)3N ? |
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Answer» Hybridisation of N in (CH3)3N is sp3 and shape of (CH3)3N is trigonal pyramial. |
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| 102. |
Which of the following methods of preparation of amines will give same number of carbon atoms in the chain of amines as in the reactant?(i) Reaction of nitrite with LiAlH4.(ii) Reaction of amide with LiAlH4 followed by treatment with water.(iii) Heating alkylhalide with potassium salt of phthalimide followed by hydrolysis.(iv) Treatment of amide with bromine in aqueous solution of sodium hydroxide. |
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Answer» (iii) Heating alkylhalide with potassium salt of phthalimide followed by hydrolysis. |
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| 103. |
Which of the following should be most volatile?(I) CH3CH2CH2NH2 (II) (CH3)3N(i) II(ii) IV(iii) I(iv) III |
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Answer» The correct answer is (ii) IV |
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| 104. |
Compound B is :A. B. C. D. |
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Answer» Correct Answer - B |
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| 105. |
Here X is:A. B. C. D. |
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Answer» Correct Answer - C |
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| 106. |
Product of this reaction is:A. B. C. D. |
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Answer» Correct Answer - D |
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| 107. |
Consider the following sequence of reactions: The products (B) and (C) are:A. B. C. D. |
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Answer» Correct Answer - B |
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| 108. |
Which of the following is an enamine?A. B. C. D. |
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Answer» Correct Answer - B |
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| 109. |
The final product (Y) is:A. B. C. D. |
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Answer» Correct Answer - B |
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| 110. |
Which of the following compounds will react with cyclopentanone to form an enamine?A. B. C. D. |
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Answer» Correct Answer - C |
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| 111. |
Among the following compounds which one will produce a Schiff base on reaction with cyclopentanone?A. B. C. D. |
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Answer» Correct Answer - C |
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| 112. |
State two important uses of aniline. |
Answer»
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| 113. |
Why do amines behave as nucleophiles? |
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Answer» Amines behave as nucleophiles. For eg: amines react with alkyl halides, acid chlorides etc. |
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| 114. |
Which of the following statements is not correct?A. Primary amines show intermolecular hydrogen bonding.B. Secondary amines show intermolecular hydrogen bondingC. Tertiary amines show intermolecular hydrogen bondingD. Amines have lower boiling points as compared to those of alcohols and carboxylic acids of comparable molar masses. |
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Answer» Correct Answer - C |
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| 115. |
Which of the following compounds is an imine ?A. `Ph-overset(O)overset(||)(C)-NH_(2)`B. `CH_(3)-CH_(2)-N=CH_(2)`C. D. |
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Answer» Correct Answer - B |
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| 116. |
Write IUPAC name of the given compound: |
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Answer» N-Methyl-2-Methylpropan-1-amine |
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| 117. |
Write IUPAC name of the following compound: |
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Answer» 2,3-dinitro phenol. |
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| 118. |
Write IUPAC name of the following compound: |
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Answer» N,N-Dimethylbutan -1-amine |
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| 119. |
Write IUPAC name of the following compound: (CH3CH2)2NCH3 |
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Answer» N-Ethyl-N-methylethanamine. |
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| 120. |
The final product (B) is:A. B. C. D. |
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Answer» Correct Answer - B |
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| 121. |
Which of the following compounds loses optical activity due to pyramidal inversion?A. B. C. D. |
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Answer» Correct Answer - D |
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| 122. |
Cyclohexanol can be converted into cyclohexylamine by following two routes. Which of the following methods is expected to give good yield of cyclohexyalmine?A. B. C. both are equally suitableD. neither of the two |
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Answer» Correct Answer - A |
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| 123. |
Which of the following will give unsymmetrical di-substituted urea after reaction with `CH_(3)NH_(2)`?A. `COCI_(2)`B. `CH_(3)CH_(2)NCS`C. `CH_(3)CH_(2)NCO`D. all of these |
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Answer» Correct Answer - C |
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| 124. |
Which of following compounds exists as non-resolvable racemic mixture?A. B. C. D. |
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Answer» Correct Answer - D |
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| 125. |
Which of the following compounds is a quaternary .A. `(CH_(3))_(3)overset(+)NHBrbar`B. `C_(2)H_(5)overset(+)NH_(2)CH_(3)Brbar`C. `C_(2)H_(5)overset(+)N(CH_(3))_(3)Brbar`D. `CH_(3)overset(+)NH_(3)Brbar` |
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Answer» Correct Answer - C Quaternary ammonium salts are derivatives of ammonium salts in which all four hydrogen atoms of the ammonium ion have been replaced by alky1 and/or ary1 groups. `underset("salt")underset("Ammonium")(overset(+)(N)H_(3)Br^(-))rarrunderset("salt")underset("Quaternary ammonium")(C_(2)H_(5)overset(+)(N)(CH_(3))_(3)Br^(-))` Similary, the tetra-alkyl derivatives of ammonium hydroxide, `[R_(4)N]^(+)OH^(-)` are called quaternary ammonium hydroxides. |
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| 126. |
Which of the following compounds is a tertiary amine ? .A. `CH_(3)underset(" C"_(6)H_(5))underset(|)(C)HNH_(2)`B. `CH_(2)=CHCH_(2)NHCH_(3)`C. D. |
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Answer» Correct Answer - C Amine are alky1 or ary1 derivatives of `NH_(3)` Substitution of one `H` of `NH_(3)` by `R` or Ar results in a `1^(@)` amine `(RNH_(2))` and if two or three hydrogen atoms are substituted the result is `2^(@) (R_(2)NH)` or `3^(@) (R_(3)N)` amine respectively . |
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| 127. |
Which of the following compounds is an amine?A. B. C. D. |
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Answer» Correct Answer - C |
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| 128. |
The general formula of the open chain saturated monoamines is .A. `C_(n)H_(2n+2)N`B. `C_(n)H_(2n+3)N`C. `C_(n)H_(2n+1)N`D. `C_(n)H_(2n)N` |
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Answer» Correct Answer - B `underset(C_(nH_(2)n+2))(R-H)underset(+NH_(2))overset(-H)rarrunderset(C_(nH_(2)+3N))(R-NH_(2))` We substitute amino group `(-NH_(2))` in place of a hydrogen atom . |
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| 129. |
Statement-1: Cyanides are more polar than isocyanides. and Statement-2: Isocynides show addition of oxygen or sulphur with HgO or HgS respectively.A. Statement-1 is true, Statement-2 is true, statement-2 is a correct explanation for statement-9B. Statement-1 is true, statement-2 is true, statement-2 is not a correct explanation for statement-9C. Statement-1 is true, statement-2 is FalseD. Statement-1 is False, Statement-2 is True. |
| Answer» Correct Answer - B | |
| 130. |
The major product (X) of the reaction is: A. B. C. D. |
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Answer» Correct Answer - B |
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| 131. |
The major product of the reaction is: A. B. C. D. |
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Answer» Correct Answer - C |
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| 132. |
The major product (X) formed in the reaction: A. B. C. D. |
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Answer» Correct Answer - A |
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| 133. |
The reaction of p-aminophenol with one mole of actyl chloride in presence of pyridine gives:A. B. C. D. |
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Answer» Correct Answer - D |
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| 134. |
Give the IUPAC name of |
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Answer» 4-methoxybenzenamine. |
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| 135. |
Choose the false statementA. `-NH_(2)` strongly activating while `-NHCOCH_(3)` is weak activatingB. `-NO_(2)` is strong deactivating groupC. `-NHCOCH_(3)` and `-NO_(2)` are m-directing groupsD. `-NH_(3)` and `-NO_(2)` are m-directing groups. |
| Answer» Correct Answer - C | |
| 136. |
The end product (B) of the reaction sequence: `C_(2)H_(5)-underset(H)underset(|)(N)-CH_(3) overset(Ph-overset(O)overset(||)(C)-Cl)underset(NaOH)rarrA overset(LiAlH_(4))underset(H_(2)O)rarr B`A. B. C. D. |
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Answer» Correct Answer - B |
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| 137. |
End product of the given reaction sequence is A. B. C. D. |
| Answer» Correct Answer - C | |
| 138. |
Acid anhydrides on reaction with primary amines give ____________.(i) amide(ii) imide(iii) secondary amine(iv) imine |
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Answer» Acid anhydrides on reaction with primary amines give amide. |
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| 139. |
The reaction is named as _________.(i) Sandmeyer reaction(ii) Gatterman reaction(iii) Claisen reaction(iv) Carbylamine reaction |
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Answer» (ii) Gatterman reaction |
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| 140. |
Ammes are basic in nature because :(a) of the nitrogen atom contain or lone pair of electrons (b) they give H+ions in aqueous medium (c) they form quaternary ammonium salts when heated with acids (d) both (a) and (c) |
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Answer» Option : (a) of the nitrogen atom contain or lone pair of electrons |
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| 141. |
The name of the compound 'C' in the following series of reactions, is(a) propan-l-ol (b) propan-2-ol(c) butan-l-ol (d) butan-2-ol |
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Answer» Option : (b) propan-2-ol |
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| 142. |
Which is mora basic?A. BenzylamineB. AnilineC. AcetamideD. o-methyl aniline |
| Answer» Correct Answer - A | |
| 143. |
Write the IUPAC names of the following compounds and classify them into primary, secondary and tertiary amines.(CH3)2CHNH2CH3(CH2)2NH2CH3NHCH(CH3)2(CH3)3CNH2 |
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Answer» 1. Propan-2-amine (1° amine) 2. Propan-1-amine (1° amine) 3. N-Methylpropan-2-amine (2° amine) 4. 2-Methylpropan-2-amine (1° amine) |
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| 144. |
Match the reactions given in Column I with the statements given in Column II.Column IColumn II(i) Ammonolysis(a) Amine with lesser number of carbon atoms(ii) Gabriel phthalimide synthesis(b) Detection test for primary amines.(iii) Hoffmann Bromamide reaction(c) Reaction of phthalimide with KOH and R—X(iv) Carbylamine reaction(d) Reaction of alkylhalides with NH3 |
| Answer» (i) → (d) (ii) → (c) (iii) → (a) (iv) → (b) | |
| 145. |
Assertion(A) Acylation of amines gives a monsubstituted product whereas alkulation of amines gives polysubstitues product. Reason(R ) Acyl group sterically hinders the apprach of further acyl groupA. Both assertio and reason are worngB. Both assertion and reason are correct statement but reason is not correct explaination of assertion.C. Assertion is correct statements and reason is correct explanation of assertion.D. Both asseration and reason are correct statements and reason is correct explanation of assertion . |
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Answer» Assertion is correct statement but reason is worng statement . Acylation of amine gives a mososubration product whereas alkyation of amine gives polysubstituted product because acylation in amine takes place at N-atom and alkylation takes place at o and p position . |
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| 146. |
Assertion (A): N-ethylbenzene sulphonamide is solube in alkali. Reason (R ): Hydrogen attached to nitrogen In sulphonamide is strongly acidic.A. Both assertio and reason are worngB. Both assertion and reason are correct statement but reason is not correct explaination of assertion.C. Assertion is correct statements and reason is correct explanation of assertion.D. Both asseration and reason are correct statements and reason is correct explanation of assertion . |
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Answer» Both assertion and reason are correct and reason is the correct explanation of assertion. N-ethlbenzene is soluble in akali because hydrogen attached to nitrogen in sulphonamide is strongly acidic and froms a salt during reactions between these two. |
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| 147. |
In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.(i) Both assertion and reason are wrong.(ii) Both assertion and reason are correct statements but reason is not correct explanation of assertion.(iii) Assertion is correct statement but reason is wrong statement.(iv) Both assertion and reason are correct statements and reason is correct explanation of assertion.(v) Assertion is wrong statement but reason is correct statement.Assertion: N, N-Diethylbenzene sulphonamide is insoluble in alkali.Reason: Sulphonyl group attached to nitrogen atom is strong electron withdrawing group. |
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Answer» (ii) Both assertion and reason are correct statements but reason is not correct explanation of assertion. |
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| 148. |
Match the compounds given in Column I with the items given in Column II.Column IColumn II(i) Benzene sulphonyl chloride(a) Zwitter ion(ii) Sulphanilic acid(b) Hinsberg reagent(iii) Alkyl diazonium salts(c) Dyes(iv) Aryl diazonium salts(d) Conversion to alcohols |
| Answer» (i) → (b) (ii) → (a) (iii) → (d) (iv) → (c) | |
| 149. |
In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.(i) Both assertion and reason are wrong.(ii) Both assertion and reason are correct statements but reason is not correct explanation of assertion.(iii) Assertion is correct statement but reason is wrong statement.(iv) Both assertion and reason are correct statements and reason is correct explanation of assertion.(v) Assertion is wrong statement but reason is correct statement.Assertion: N-Ethylbenzene sulphonamide is soluble in alkali.Reason: Hydrogen attached to nitrogen in sulphonamide is strongly acidic. |
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Answer» (iv) Both assertion and reason are correct statements and reason is correct explanation of assertion. |
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| 150. |
In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.(i) Both assertion and reason are wrong.(ii) Both assertion and reason are correct statements but reason is not correct explanation of assertion.(iii) Assertion is correct statement but reason is wrong statement.(iv) Both assertion and reason are correct statements and reason is correct explanation of assertion.(v) Assertion is wrong statement but reason is correct statement.Assertion: Hoffmann’s bromamide reaction is given by primary amines.Reason: Primary amines are more basic than secondary amines. |
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Answer» (iii) Assertion is correct statement but reason is wrong statement. |
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