JEE Main & Advanced Chemistry Alcohols, Phenols and Ethers / एल्कोहॉल, फीनॉल तथा ईथर Question Bank

done Critical Thinking Alcohols,Phenols Total Questions - 22

• question_answer1)
  Which will undergo a Friedel-Craft's alkylation reaction [Pb. PMT 1998]
  A)
                  1, 2 and 4             done clear
  B)
                  1 and 3 done clear
  C)
                  2 and 4  done clear
  D)
                  1 and 2 done clear
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• question_answer2)
  The product ?A? in the following reaction is                 \[\begin{array}{*{35}{l}}    {{H}_{2}}C\,\,C{{H}_{2}}  \\    \begin{align}   & \,\,\,\,\,\,\,\,\,\,\,\, \\  & \,\,\,\,\,\,\,\,\,\,\,\,\overset{\backslash /}{\mathop{O}}\, \\ \end{align}  \\ \end{array}\xrightarrow{RMgI}A\]                                       [MP PMT 2003]
  A)
                  \[RCHOHR\]       done clear
  B)
                  \[RCHOH\cdot C{{H}_{3}}\] done clear
  C)
                  \[R-C{{H}_{2}}-C{{H}_{2}}-OH\] done clear
  D)
                  \[\begin{array}{*{35}{l}}    R  \\    R  \\ \end{array}>CHC{{H}_{2}}OH\] done clear
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• question_answer3)
  Glycerol boils at \[{{290}^{o}}C\] with slight decomposition. Impure glycerin can be purified by  [CPMT 1983, 94]
  A)
                  Steam distillation             done clear
  B)
                  Simple distillation done clear
  C)
                  Vacuum distillation          done clear
  D)
                  Extraction with a solvent done clear
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• question_answer4)
  Phenol \[\xrightarrow{NaN{{O}_{2}}/{{H}_{2}}S{{O}_{4}}}B\xrightarrow{{{H}_{2}}O}C\xrightarrow{NaOH}D\]                 Name of the above reaction is   [KCET 2003]
  A)
                  Liebermann?s reaction   done clear
  B)
                  Phthalein fusion test      done clear
  C)
                  Reimer-Tiemann reaction done clear
  D)
                  Schottenf-Baumann reaction done clear
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• question_answer5)
  The correct order of boiling point for primary \[({{1}^{o}}),\] secondary \[({{2}^{o}})\] and tertiary \[({{3}^{o}})\] alcohols is [CPMT 1999; RPMT 2002]
  A)
                  \[{{1}^{o}}>{{2}^{o}}>{{3}^{o}}\]              done clear
  B)
                  \[{{3}^{o}}>{{2}^{o}}>{{1}^{o}}\] done clear
  C)
                  \[{{2}^{o}}>{{1}^{o}}>{{3}^{o}}\]              done clear
  D)
                  \[{{2}^{o}}>{{3}^{o}}>{{1}^{o}}\] done clear
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• question_answer6)
  What will be the products of reaction if methoxybenzene reacts with HI
  A)
                  Methyl alcohol (methanol) + iodobenzene done clear
  B)
                  Methyl iodide (iodomethane) + benzene done clear
  C)
                  Methyle iodide + phenol done clear
  D)
                  Methyl iodide + iodobenzene done clear
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• question_answer7)
  Ethylene reacts with Baeyer's reagent to give     [CPMT 1988]
  A)
                  Ethane  done clear
  B)
                  Ethyl alcohol done clear
  C)
                  Ethylene glycol  done clear
  D)
                  None of these done clear
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• question_answer8)
  Which of the following statements is correct regarding case of dehydration in alcohols [CPMT 1980, 85; MP PMT 2001; BHU 2002]
  A)
                  Primary > Secondary      done clear
  B)
                  Secondary > Tertiary done clear
  C)
                  Tertiary > Primary            done clear
  D)
                   None of these done clear
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• question_answer9)
  Oxiran is
  A)
                  Ethylene oxide  done clear
  B)
                  Diethyl ether done clear
  C)
                  Ethyl glycolate   done clear
  D)
                  Glycolic ester done clear
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• question_answer10)
  Propan-1-ol can be prepared from propene by alcohol [AIIMS 2003]
  A)
                  \[{{H}_{2}}O/{{H}_{2}}S{{O}_{4}}\] done clear
  B)
                  \[Hg{{(OAc)}_{2}}/{{H}_{2}}O\]followed by \[NaB{{H}_{4}}\] done clear
  C)
                  \[{{B}_{2}}{{H}_{6}}\]followed by \[{{H}_{2}}{{O}_{2}}\] done clear
  D)
                  \[C{{H}_{3}}C{{O}_{2}}H/{{H}_{2}}S{{O}_{4}}\] done clear
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• question_answer11)
  Distinction between primary, secondary and tertiary alcohol is done by [MP PMT/PET 1988; RPMT 2000]
  A)
                  Oxidation method done clear
  B)
                  Lucas test done clear
  C)
                  Victor Meyer method done clear
  D)
                  All of these done clear
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• question_answer12)
  Oxidation of which of the following by air in presence of vanadium pentoxide gives phenol
  A)
                  Toluene               done clear
  B)
                  Benzene done clear
  C)
                  Benzaldehyde   done clear
  D)
                  Phenyl acetic acid done clear
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• question_answer13)
  The most suitable method of the separation of a 1 : 1 mixture of ortho and para nitrophenols is [CBSE PMT 1994, 99; CPMT 1997]
  A)
                  Distillation           done clear
  B)
                  Sublimation done clear
  C)
                  Crystallization    done clear
  D)
                  Chromatography done clear
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• question_answer14)
  Which of the following does not form phenol or phenoxide [AFMC 2000]
  A)
                  \[{{C}_{6}}{{H}_{5}}Cl\] done clear
  B)
                  \[{{C}_{6}}{{H}_{5}}COOH\] done clear
  C)
                  \[{{C}_{6}}{{H}_{5}}{{N}_{2}}Cl\]               done clear
  D)
                  \[{{C}_{6}}{{H}_{5}}S{{O}_{3}}Na\] done clear
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• question_answer15)
  Which of the following will be obtained by keeping ether in contact with air for a long time          [RPMT 2003]
  A)
                  \[{{C}_{2}}{{H}_{5}}-O-CH\ (C{{H}_{3}})-O-OH\] done clear
  B)
                  \[{{C}_{2}}{{H}_{5}}-OC{{H}_{2}}-OH\] done clear
  C)
                  \[{{C}_{2}}{{H}_{5}}-O-{{C}_{2}}{{H}_{5}}OH\] done clear
  D)
                  \[C{{H}_{3}}-O\ CH\ (C{{H}_{3}})-O-OH\] done clear
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• question_answer16)
  When a mixture of ethanol and methanol is heated in the presence of concentrated \[{{H}_{2}}S{{O}_{4}}\] the resulting organic product or products is/are           [Manipal MEE 1995]
  A)
                  \[C{{H}_{3}}O{{C}_{2}}{{H}_{5}}\] done clear
  B)
                  \[C{{H}_{3}}OC{{H}_{3}}\] and \[{{C}_{2}}{{H}_{5}}O{{C}_{2}}{{H}_{5}}\] done clear
  C)
                  \[C{{H}_{3}}O{{C}_{2}}{{H}_{5}}\] and \[C{{H}_{3}}OC{{H}_{3}}\] done clear
  D)
                  \[C{{H}_{3}}O{{C}_{2}}{{H}_{5}},\] \[C{{H}_{3}}OC{{H}_{3}}\] and \[{{C}_{2}}{{H}_{5}}O{{C}_{2}}{{H}_{5}}\] done clear
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• question_answer17)
  In the following groups                 \[\begin{matrix}    -OAc  \\    \text{I}  \\ \end{matrix}\]  \[\begin{matrix}    -OMe  \\    \text{II}  \\ \end{matrix}\]  \[\begin{matrix}    -OS{{O}_{2}}Me  \\    \text{III}  \\ \end{matrix}\]  \[\begin{matrix}    -OS{{O}_{2}}C{{F}_{3}}  \\    \text{IV}  \\ \end{matrix}\]                 The order of leaving group ability is         [IIT 1997]
  A)
                  I > II > III > IV done clear
  B)
                  IV > III > I > II done clear
  C)
                  III > II > I > IV done clear
  D)
                  II > III > IV > I done clear
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• question_answer18)
  Epoxides are
  A)
                  Cyclic ethers done clear
  B)
                  Not ethers done clear
  C)
                  Aryl-alkyl ethers done clear
  D)
                  Ethers with another functional group done clear
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• question_answer19)
  The reaction of with HBr gives    [IIT-JEE 1998]
  A)
                    done clear
  B)
                    done clear
  C)
                  done clear
  D)
                    done clear
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• question_answer20)
  Which of the following compounds on boiling with \[KMn{{O}_{4}}\](alk.) and subsequent acidification will not give benzoic acid        [KCET 2001]
  A)
                  Benzyl alcohol   done clear
  B)
                  Acetophenone done clear
  C)
                  Anisole done clear
  D)
                  Toluene done clear
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• question_answer21)
  The best reagent to convert pent-3-en-2-ol into pent-3-in-2-one is          [AIEEE 2005]
  A)
                  Acidic permanganate     done clear
  B)
                  Acidic dichromate done clear
  C)
                  Chromic anhydride in glacial acetic acid done clear
  D)
                  Pyridinium chloro-chromate done clear
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• question_answer22)
  When alcohol reacts with concentrated \[{{H}_{2}}S{{O}_{4}}\]intermediate compound formed is            [AFMC 2005]
  A)
                  Carbonium ion  done clear
  B)
                  Alkoxy ion done clear
  C)
                  Alkyl hydrogen sulphate               done clear
  D)
                  None of these done clear
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