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. |
Which of the following esterification reactions are unimolecular?A. B. C. D. |
| Answer» Correct Answer - B::C::D | |
| 102. |
Which of the following compounds are soluble in `NaHCO_(3)`?A. B. C. D. |
| Answer» Correct Answer - A::B::D | |
| 103. |
Which of the following reaction involve rearrangement?A. B. C. D. |
| Answer» Correct Answer - B::C::D | |
| 104. |
Which of the following compounds are soluble in `NaHCO_(3)`?A. B. C. D. |
| Answer» Correct Answer - A::B::D | |
| 105. |
Which of the following reaction involve rearrangement?A. B. C. D. |
| Answer» Correct Answer - B::C::D | |
| 106. |
Which of the following paris can be distinguished by using Lucas reagent?A. B. C. D. |
| Answer» Correct Answer - A::B::C | |
| 107. |
Which of the following paris can be distinguished by using Lucas reagent?A. B. C. D. |
| Answer» Correct Answer - A::B::C | |
| 108. |
Consider the molecule Which reagent will not give a positve test with this compound?A. Cold conc.`H_(2)SO_(4)`B. `Br_(2)//C Cl_(4)`C. NaOH(aq)D. Dilute `KMnO_(4)//H_(2)O` |
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Answer» Correct Answer - c |
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| 109. |
Find out correct product of reaction:A. B. `CH_(2)+CH_(2)`C. D. CH_(3)CH_(2)OH` |
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Answer» Correct Answer - C |
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| 110. |
Compounds A, B and C are isomeric alcohols with formula `C_(5)H_(12)O`. A on oxidation given ketone, B gives acid while C is not oxidised, A gives test with `I_(2)//NaOH`. The three isomerice alcohols react with HBr with decreasing rates `C gt A gt B`. Identify A and B.A. B. C. D. |
| Answer» Correct Answer - A,C | |
| 111. |
Compounds A, B and C are isomeric alcohols with formula `C_(5)H_(12)O`. A on oxidation given ketone, B gives acid while C is not oxidised, A gives test with `I_(2)//NaOH`. The three isomerice alcohols react with HBr with decreasing rates `C gt A gt B`. Identify A and B.A. B. C. D. |
| Answer» Correct Answer - A,C | |
| 112. |
Identify (Z) in the following series. `Ethanol overset(PBr_(3))to (X) overset(Alc.//KOH)to (Y) overset((i)H_(2)SO_(4)//("Room temp")) underset((ii)(H_(2)O,Heat))to(Z)`A. `C_(2)=CH_(2)`B. `CH_(3)CH_(2)OH`C. `CH_(3)-CH_(2)-O-CH_(2)-CH_(3)`D. `CH_(3)-CH_(2)-SO_(3)H` |
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Answer» Correct Answer - B |
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| 113. |
, Product can beA. B. C. D. |
| Answer» Correct Answer - A::B | |
| 114. |
Which of the following reactions are correctA. B. C. D. `CH_(3)-C-=Noverset(LiAIH_(4))toCH_(3)CH_(2)NH_(2)` |
| Answer» Correct Answer - A::C::D | |
| 115. |
Among of the following gemdiols which are stable with respect to corresponding carbonyls:A. `CI_(3)Coverset(OH)overset(|)underset(OH)underset(|)(C )-H`B. C. D. |
| Answer» Correct Answer - A::B::C::D | |
| 116. |
Among of the following gemdiols which are stable with respect to corresponding carbonyls:A. `CI_(3)Coverset(OH)overset(|)underset(OH)underset(|)(C )-H`B. C. D. |
| Answer» Correct Answer - A::B::C::D | |
| 117. |
Alcohols are converted to tosylates by treatment with p-toluence sulfonyl chloride (TsCl) in the presence of pyridine. This overall process converts a poor leaving group `(overset(Ө)H)` into good one `(overset(Ө)Ts)`. A tosylate is a good leaving group its conjugates acid p-touence sulfonic acid is strong acid. Beacuse alkyl tosylates have food leaving groups, they undergo both nucleophilic substitution and `beta-"elimination"`. Find the major product of the following reaction: A. B. C. D. |
| Answer» Correct Answer - C | |
| 118. |
Alcohols are converted to tosylates by treatment with p-toluence sulfonyl chloride (TsCl) in the presence of pyridine. This overall process converts a poor leaving group `(overset(Ө)H)` into good one `(overset(Ө)Ts)`. A tosylate is a good leaving group its conjugates acid p-touence sulfonic acid is strong acid. Beacuse alkyl tosylates have food leaving groups, they undergo both nucleophilic substitution and `beta-"elimination"`. Find the major product of the following reaction: A. B. C. D. |
| Answer» Correct Answer - C | |
| 119. |
A tertiary alcohol (H) upon acid-catalysed dehydration gives a product (I). Ozonolysis of (I) leads to compounds (J) and (K). Compound (J) upon reaction with KOH gives benzyl alcohol and a compound (L), whereas (K) on reaction with KOH gives only (M). Compound (H) is formed by the reaction of:A. B. C. D. |
| Answer» Correct Answer - B | |
| 120. |
A tertiary alcohol (H) upon acid-catalysed dehydration gives a product (I). Ozonolysis of (I) leads to compounds (J) and (K). Compound (J) upon reaction with KOH gives benzyl alcohol and a compound (L), whereas (K) on reaction with KOH gives only (M). The structures of compounds (J), (K), and (L), respectively, are:A. `Ph-overset(O)overset(|)(C)-CH_(3),Ph-CH_(2)-overset(O)overset(||)(C)-CH_(3)and Ph-CH_(2)-overset(O)overset(||)(C)-O^(Ө)K^(oplus)`B. `Ph-overset(O)overset(||)(C)-H,Ph-CH_(2)-overset(O)overset(||)(C)-Hand Ph-overset(O)overset(||)(C)-O^(Ө)K^(oplus)`C. `Ph-overset(O)overset(||)(C)-CH_(3),Ph-CH_(2)-overset(O)overset(||)(C)-Hand CH_(3)-overset(O)overset(||)(C)-O^(Ө)K^(oplus`D. `Ph-overset(O)overset(||)(C)-H,Ph-overset(O)overset(||)(C)-CH_(3)and Ph-overset(O)overset(||)(C)-O^(Ө)K^(oplus` |
| Answer» Correct Answer - D | |
| 121. |
A tertiary alcohol (H) upon acid-catalysed dehydration gives a product (I). Ozonolysis of (I) leads to compounds (J) and (K). Compound (J) upon reaction with KOH gives benzyl alcohol and a compound (L), whereas (K) on reaction with KOH gives only (M). The structurer of compound (I) is:A. B. C. D. |
| Answer» Correct Answer - A | |
| 122. |
A tertiary alcohol (H) upon acid-catalysed dehydration gives a product (I). Ozonolysis of (I) leads to compounds (J) and (K). Compound (J) upon reaction with KOH gives benzyl alcohol and a compound (L), whereas (K) on reaction with KOH gives only (M). Compound (H) is formed by the reaction of:A. B. C. D. |
| Answer» Correct Answer - B | |
| 123. |
An organic compound (A) on treatment with `CHCl_(3) and KOH` gives (Y) and (Z) both of which in turn gives the same compound (T) when distilled with Zn. Oxidation of (T) Yields (S) of formula `C_(7)H_(6)O_(2)`. The sodium salt of (S) with sodalime gives (P) which can also be obtained by distilling (X). The compound (T) isA. B. C. D. |
| Answer» Correct Answer - C | |
| 124. |
An organic compound (A) on treatment with `CHCl_(3) and KOH` gives (Y) and (Z) both of which in turn gives the same compound (T) when distilled with Zn. Oxidation of (T) Yields (S) of formula `C_(7)H_(6)O_(2)`. The sodium salt of (S) with sodalime gives (P) which can also be obtained by distilling (X). The molecular weight of compound (X) is:A. 122B. 94C. 106D. 78 |
| Answer» Correct Answer - B | |
| 125. |
An organic compound (A) on treatment with `CHCl_(3) and KOH` gives (Y) and (Z) both of which in turn gives the same compound (T) when distilled with Zn. Oxidation of (T) Yields (S) of formula `C_(7)H_(6)O_(2)`. The sodium salt of (S) with sodalime gives (P) which can also be obtained by distilling (X). The compound (T) isA. B. C. D. |
| Answer» Correct Answer - C | |
| 126. |
In the give reaction A. `H_(3)C-underset(CH_(3))underset(|)overset(OMe)overset(|)(C)-CH_(2)-CH_(3)`B. `H_(3)C-underset(CH_(3))underset(|)(C)-overset(OMe)overset(|)(CH_(2))-CH_(3)`C. `H_(3)C-underset(CH_(3))underset(|)(C)-CH_(2)-CH_(3)`D. `H_(3)C-underset(CH_(3))underset(|)(OH)-CH_(2)-CH_(3)` |
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Answer» Correct Answer - A |
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| 127. |
In the give reaction A. `H_(3)C-underset(CH_(3))underset(|)overset(OMe)overset(|)(C)-CH_(2)-CH_(3)`B. `H_(3)C-underset(CH_(3))underset(|)(C)-overset(OMe)overset(|)(CH_(2))-CH_(3)`C. `H_(3)C-underset(CH_(3))underset(|)(C)-CH_(2)-CH_(3)`D. `H_(3)C-underset(CH_(3))underset(|)(OH)-CH_(2)-CH_(3)` |
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Answer» Correct Answer - A |
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| 128. |
Sodium teritary butoxide forms ether only with:A. B. `CH_(3)-X`C. `H_(3)C-overset(CH)overset(|)(CH)-CH_(3)`D. `H_(3)C-underset(CH_(3))underset(|)overset(X)overset(|)(CH)-CH_(3)` |
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Answer» Correct Answer - B |
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| 129. |
Sodium teritary butoxide forms ether only with:A. B. `CH_(3)-X`C. `H_(3)C-overset(CH)overset(|)(CH)-CH_(3)`D. `H_(3)C-underset(CH_(3))underset(|)overset(X)overset(|)(CH)-CH_(3)` |
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Answer» Correct Answer - B |
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| 130. |
`CH_(3)underset(Br)underset(|)CHCH_(3) overset(alc.//KOH)to A overset("HBr//peroxide")toB overset(CH_(3)Na)to C` In the above reaction sequence, the final product is:A. diethyl etherB. 1-methoxypropaneC. isopropyl alcoholD. propylene glycol |
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Answer» Correct Answer - B |
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| 131. |
Compound (A) `C_(10)H_(22)0_(2)` is insoluble in aq. NaOH bu not is `NaHCO_(3)`. Treatment of (A) with DMSO `(CH_(3)-overset(S)overset(||)(S)-CH_(3))` in alkali give (B) `C_(11)H_(14)O_(2)`. Treatment of (A) with strong alkali alone give an isomeric compound (C). When (A) is reflux with HI, `CH_(3)I` is obtained, compound (B) is insoluble in alkali and decolurises `Br_(2)//C Cl_(4)`. (B) on treating with strong base gives (D), an isomer of (B). Ozonolysis (C) of gives (E), `C_(8)H_(8)O` and isomer of vanilline. Ozolysis of (D) gives (F) `C_(9)H_(10)O_(3)`, which is identical with product of methylation of vanilline (4-hydroxy-3-methoxy benzaldehyde). Structure of compound (A) is:A. B. C. D. |
| Answer» Correct Answer - C | |
| 132. |
Compound (A) `C_(10)H_(22)0_(2)` is insoluble in aq. NaOH bu not is `NaHCO_(3)`. Treatment of (A) with DMSO `(CH_(3)-overset(S)overset(||)(S)-CH_(3))` in alkali give (B) `C_(11)H_(14)O_(2)`. Treatment of (A) with strong alkali alone give an isomeric compound (C). When (A) is reflux with HI, `CH_(3)I` is obtained, compound (B) is insoluble in alkali and decolurises `Br_(2)//C Cl_(4)`. (B) on treating with strong base gives (D), an isomer of (B). Ozonolysis (C) of gives (E), `C_(8)H_(8)O` and isomer of vanilline. Ozolysis of (D) gives (F) `C_(9)H_(10)O_(3)`, which is identical with product of methylation of vanilline (4-hydroxy-3-methoxy benzaldehyde). Compound (B) is:A. B. C. D. |
| Answer» Correct Answer - B | |
| 133. |
What is Z in the following sequence of reactions? `Z overset(PCl_(3))toX overset(alc.KOH)to Y underset((ii)H_(2)O boil)overset((i)Conc.H_(2)SO_(4))toZ`A. `H_(2)C=CH-CH_(2)-OH`B. `CH_(3)CHOHCH_(3)`C. `(CH_(3)CH_(2))COOH`D. `CH_(3)CH=CH_(2)` |
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Answer» Correct Answer - B |
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| 134. |
Which of the following reactions would produce same product?A. B. C. D. |
| Answer» Correct Answer - A::B | |
| 135. |
A and B respectively:A. B. C. D. |
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Answer» Correct Answer - B |
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| 136. |
`2Ph-overset(O)overset(||)(C)-CH_(3)underset(H_(2)O)overset(Mg-Hg)to underset(Delta)overset(Conc.H_(2)SO_(4))to overset(KMnO_(4),H^(oplus))to` The final product isA. B. C. D. |
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Answer» Correct Answer - C |
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| 137. |
Which of the following alcohols will give same alkene on reaction with conc.A. B. C. D. |
| Answer» Correct Answer - A::B::C | |
| 138. |
The reactio of HBr with the followin compound would produce A. B. C. D. |
| Answer» Correct Answer - B | |
| 139. |
Which of the following is best set of reagents to performs to the above conversion?A. `ThO_(2),Delta`B. `H_(3)PO_(4),Delta`C. `Conc.H_(2)SO_(4),Delta`D. `Al_(2)O_(3),Delta` |
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Answer» Correct Answer - A |
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| 140. |
Which of the following is best set of reagents to performs to the above conversion?A. `LiAlH_(4)`B. `NaBH_(4)`C. `K_(2)Cr_(2)O_(7)`D. None of these |
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Answer» Correct Answer - B |
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| 141. |
Find the correct method for the following conversion: A. `overset(Ө)H,HBr`B. `Conc. H_(2)SO_(4), Delta`C. `H^(oplus), HBr`D. None of these |
| Answer» Correct Answer - C | |
| 142. |
Which of the following alcohols will undergo easiest dehgydration?A. B. C. D. |
| Answer» Correct Answer - D | |
| 143. |
Which combination of reagents will bring about the following conversion? A. `MeMgBr//H^(oplus), H_(2)SO_(4)//Delta, HBr//H_(2)O_(2)`B. `MeMgBr//H^(oplus), H_(2)SO_(4)//Delta, HBr`C. `MeMgBr//H^(oplus), HBr//C Cl_(4)`D. `HBr//H_(2)O_(2), MeMgBr//H^(oplus)` |
| Answer» Correct Answer - A | |
| 144. |
Which combination of reagents will bring about the following conversion? A. `MeMgBr//H^(oplus), H_(2)SO_(4)//Delta, HBr//H_(2)O_(2)`B. `MeMgBr//H^(oplus), H_(2)SO_(4)//Delta, HBr`C. `MeMgBr//H^(oplus), HBr//C Cl_(4)`D. `HBr//H_(2)O_(2), MeMgBr//H^(oplus)` |
| Answer» Correct Answer - A | |
| 145. |
Consider the following reactions: `underset(Br)underset(|)(CH_(3))-underset(Br)underset(|)(CH_(2)) underset(H_(2)O,Delta)overset(NaOH)toA overset(NaH)toB,B+underset(Br)underset(|)(CH_(2))-underset(Br)underset(|)(CH_(2))toC` The major product formed is:A. B. C. D. |
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Answer» Correct Answer - D |
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| 146. |
A chiral `C_(5)H_(10)O` ether reacts with hot HI to give a `C_(5)H_(10)I_(2)` product. Treatment of this with hot KOH in ethanol produces 1,3-pentadience. What is the structure of the original ether?A. B. C. D. |
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Answer» Correct Answer - b |
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| 147. |
Which of the following reactions will give ether as main product?A. B. `Me_(3)C-OH underset(C_(6)H_(5)Br)overset(Na)to`C. `Me_(3)C-OH underset(CH_(3)CH_(2)CH_(2)Br)overset(Na)to`D. ` CH_(3)CH_(2)CH_(2)OH underset(Me_(3)C-Br)overset(Na)to` |
| Answer» Correct Answer - A::D | |
| 148. |
Which of the following reaction would give the best yield of t- butyl methly ether ?A. `(CH_(3))_(3)C-OH underset(140^(@)C)overset(H_(2)SO_(4))to`B. `(CH_(3))_(3)C-Br+CH_(3)OH to `C. `(CH_(3))_(3)C-Br+CH_(3)overset(Ө)ONa to `D. `(CH_(3))_(3)C-overset(Ө)(C)overset(oplus)(K)+CH_(3)Br to ` |
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Answer» Correct Answer - D |
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| 149. |
`C_(2)H_(5)Br` can be converted into `C_(2)H_(5)-O-C_(2)H_(5)` by:A. reacting by `C_(2)H_(5)ONa`B. heating with moist `Ag_(2)O`C. heating with dry `Ag_(2)O`D. treating with `C_(2)H_(5)MgBr` |
| Answer» Correct Answer - A::C | |
| 150. |
`CH_(3)CH_(2)-OH` can be converted to `CH_(3)CH_(2)CN` by the following reaction:A. `CH_(3)CH_(2)OH+KCN overset(Delta)to`B. `CH_(3)CH_(2)OH+HCN overset(Delta)to`C. `CH_(3)CH_(2)OH+HCN overset(TsCl)to overset(KCl)to`D. `CH_(3)CH_(2)OH+HCN overset(SOCl_(2))to overset(KCN)to` |
| Answer» Correct Answer - C::D | |