NEET Chemistry Alcohols, Phenols and Ethers / एल्कोहॉल, फीनॉल तथा ईथर Question Bank

done Self Evaluation Test - Alcohols, Phenols and Ethers Total Questions - 80

• question_answer1)
  Which one of the following statements is not correct?
  A)
  Alcohols are weaker acids than water. done clear
  B)
  Acid strength of alcohols decreases in the following \[RC{{H}_{2}}OH>{{R}_{2}}CHOH>{{R}_{3}}COH.\] done clear
  C)
  Carbon-oxygen bond length in methanol, \[C{{H}_{3}}OH\] is shorter than that of \[C-O\] bond length in phenol. done clear
  D)
  The bond angle  in methanol is\[108.9{}^\circ \]. done clear
  View Solution play_arrow

• question_answer2)
  What is the structure of the major product when phenol is treated with bromine water?
  A)
      done clear
  B)
  done clear
  C)
               done clear
  D)
  done clear
  View Solution play_arrow

• question_answer3)
  In the given pair of alcohol, in which pair second alcohol is more reactive than first towards hydrogen bromide?
  A)
  done clear
  B)
  done clear
  C)
  \[C{{H}_{3}}-\underset{OH}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-C{{H}_{2}}-C{{H}_{3}}\] and  \[C{{H}_{3}}-\underset{{}}{\mathop{\underset{{}}{\mathop{C}}\,}}\,{{H}_{2}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-C{{H}_{2}}-OH\] done clear
  D)
  \[C{{H}_{3}}-\underset{OH}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-C{{H}_{2}}-C{{H}_{3}}\] and  \[{{(C{{H}_{3}})}_{2}}-\underset{OH}{\mathop{\underset{|}{\mathop{C}}\,}}\,-C{{H}_{2}}-C{{H}_{3}}\] done clear
  View Solution play_arrow

• question_answer4)
  \[\xrightarrow{\begin{smallmatrix}  (1)\,MeMgBr \\  (2)\,{{H}_{3}}{{O}^{+}} \end{smallmatrix}}(C)\xrightarrow{NaB{{H}_{4}}.EtOH}(D)\] Product [D] in above reaction is:
  A)
                     done clear
  B)
  done clear
  C)
                    done clear
  D)
  done clear
  View Solution play_arrow

• question_answer5)
  Which of the following reagents would carry out the following transformation? \[(D{{=}^{2}}H)\]
  A)
  \[NaB{{D}_{4}}\] in \[C{{H}_{3}}OH\] done clear
  B)
  \[LiAl{{H}_{4}}\] then \[{{D}_{2}}O\] done clear
  C)
  \[NaB{{D}_{4}}\] in \[C{{H}_{3}}OD\] done clear
  D)
  \[LiAl{{D}_{4}}\] then \[{{D}_{2}}O\] done clear
  View Solution play_arrow

• question_answer6)
  In the Victor-Meyer's test, the colour given by \[1{}^\circ ,2{}^\circ \] and \[3{}^\circ \] alcohols are respectively:
  A)
  Red, colourless, blue done clear
  B)
  Red, blue, colourless done clear
  C)
  Colourless, red, blue done clear
  D)
  Red, blue, violet done clear
  View Solution play_arrow

• question_answer7)
  Rate of dehydration of alcohols follows the order:
  A)
  \[2{}^\circ >1{}^\circ >C{{H}_{3}}OH>3{}^\circ \] done clear
  B)
  \[3{}^\circ >2{}^\circ >1{}^\circ >C{{H}_{3}}OH\] done clear
  C)
  \[2{}^\circ >3{}^\circ >1{}^\circ >C{{H}_{3}}OH\] done clear
  D)
  \[C{{H}_{3}}OH>1{}^\circ >2{}^\circ >3{}^\circ \] done clear
  View Solution play_arrow

• question_answer8)
  In Williamson synthesis of mixed ether having a primary and a tertiary alkyl group if tertiary halide is used, then:
  A)
  Rate of reaction will be slow due to slow cleavage of carbon-halogen bond. done clear
  B)
  Alkene will be the main product. done clear
  C)
  Simple ether will form instead of mixed ether. done clear
  D)
  Expected mixed ether will be formed. done clear
  View Solution play_arrow

• question_answer9)
  An ether [A], \[{{C}_{5}}{{H}_{12}}O\], when heated with excess of hot concentrated HI produced two alkyl halides which when treated with \[NaOH\] yielded compounds [B] and [C]. Oxidation of [B] and [C] gave a propanone and an ethanoic acid respectively. The IUPAC name of the ether [A] is:                 
  A)
  2-ethoxypropane done clear
  B)
  ethoxypropane done clear
  C)
  methoxybutane              done clear
  D)
  2-methoxybutane done clear
  View Solution play_arrow

• question_answer10)
  Allyl phenyl ether can be prepared by heating:
  A)
  \[{{C}_{6}}{{H}_{5}}Br+C{{H}_{2}}=CH-C{{H}_{2}}-ONa\] done clear
  B)
  \[C{{H}_{2}}=CH-C{{H}_{2}}-Br+{{C}_{6}}{{H}_{5}}ONa\] done clear
  C)
  \[{{C}_{6}}{{H}_{5}}-CH=CH-Br+C{{H}_{3}}-ONa\] done clear
  D)
  \[C{{H}_{2}}=CH-Br+{{C}_{6}}{{H}_{5}}-C{{H}_{2}}-ONa\] done clear
  View Solution play_arrow

• question_answer11)
  Amongst the following alcohols which would react fastest with cone. \[HCl\] and \[ZnC{{l}_{2}}\]?
  A)
  pentanol            done clear
  B)
  2-methyl butanol done clear
  C)
  2-pentanol         done clear
  D)
  2-methyl butan-2-ol done clear
  View Solution play_arrow

• question_answer12)
  Reagent used to convert allyl alcohol to acrolein is
  A)
  \[Mn{{O}_{4}}\]                       done clear
  B)
  \[{{H}_{2}}{{O}_{2}}\] done clear
  C)
  \[Os{{O}_{4}}\]                        done clear
  D)
  \[KMn{{O}_{4}}\] done clear
  View Solution play_arrow

• question_answer13)
  Which are not cleaved by \[HI{{O}_{4}}\]?

  I. glycerol

  II. glycol

  III. 1, 3 propenediol

  IV. methoxy-2-propanol

  A)
  I, II, III, IV         done clear
  B)
  I, II done clear
  C)
  II, III                             done clear
  D)
  III, IV done clear
  View Solution play_arrow

• question_answer14)
  The reaction of phenol with benzoyl chloride to give phenyl benzoate is known as:
  A)
  Claisen reaction done clear
  B)
  Schotten-Baumann reaction done clear
  C)
  Reimer-Tiemann reaction done clear
  D)
  Gatterman-Koch reaction done clear
  View Solution play_arrow

• question_answer15)
  Product [B] of the above reaction is:
  A)
    done clear
  B)
  done clear
  C)
    done clear
  D)
  done clear
  View Solution play_arrow

• question_answer16)
  Which one of the following compounds will not be soluble in sodium bicarbonate?
  A)
  2, 4, 6 - Trinitrpphenol done clear
  B)
  Benzoicacid done clear
  C)
  o - Nitrophenol done clear
  D)
  Benzene sulphonic acid done clear
  View Solution play_arrow

• question_answer17)
  Which one of the following substituents at para- position is most effective in stabilizing the Product of the reaction is:
  A)
  \[-C{{H}_{3}}\]            done clear
  B)
  \[-OC{{H}_{3}}\] done clear
  C)
  \[-COC{{H}_{3}}\]                      done clear
  D)
  \[-C{{H}_{2}}OH\] done clear
  View Solution play_arrow

• question_answer18)
  Product of the reaction is:
  A)
                      done clear
  B)
  done clear
  C)
                        done clear
  D)
  done clear
  View Solution play_arrow

• question_answer19)
  Consider the following alcohols,

  (I)          (II)

  (III)   (IV)

  The order of decreasing reactivities of these alcohols towards nucleophilic substitution with HBr is:

  A)
  III>I>IV>II                   done clear
  B)
  III>I>II>IV done clear
  C)
  I>III>IV>II                   done clear
  D)
  I>III>II>IV done clear
  View Solution play_arrow

• question_answer20)
  Williamson synthesis of ether is an example of:
  A)
  Nucleophilic addition done clear
  B)
  Electrophilic addition done clear
  C)
  Electrophilic substitution done clear
  D)
  Nucleophilic substitution done clear
  View Solution play_arrow

• question_answer21)
  Phenol on heating with \[CHC{{l}_{3}}\] and \[NaOH\] gives salicylaldehyde. The reaction is called:
  A)
  Reimer - Tiemann reaction done clear
  B)
  Claisen reaction done clear
  C)
  Cannizzaro's reaction done clear
  D)
  Hell - Volhard - Zeiinsky reaction done clear
  View Solution play_arrow

• question_answer22)
  In which of the following reactions hydrogen gas will not be evolved?
  A)
  \[C{{H}_{3}}-C{{H}_{2}}-OH\xrightarrow{Na}\] done clear
  B)
  \[C{{H}_{3}}-C{{H}_{2}}-OH\xrightarrow{K}\] done clear
  C)
  \[C{{H}_{3}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-OH\xrightarrow{Al}\] done clear
  D)
  \[C{{H}_{3}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-OH\xrightarrow{C{{H}_{3}}MgBr}\] done clear
  View Solution play_arrow

• question_answer23)
  Which is the best reagent to convert isopropyl alcohol to isopropyl bromide? \[C{{H}_{3}}-\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,H-OH\xrightarrow{?}C{{H}_{3}}-\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,H-Br\]
  A)
  \[HBr\]                          done clear
  B)
  \[SOB{{r}_{2}}\] done clear
  C)
  \[B{{r}_{2}}\]                           done clear
  D)
  \[C{{H}_{3}}MgBr\] done clear
  View Solution play_arrow

• question_answer24)
  How many isomers of \[{{C}_{5}}{{H}_{11}}OH\] will be primary alcohols?
  A)
  5                      done clear
  B)
  4      done clear
  C)
  2                                  done clear
  D)
  3 done clear
  View Solution play_arrow

• question_answer25)
  On reaction with sodium, 1 mol of a compound X gives 1 mol of \[{{H}_{2}}\] Which one of the following compounds might be X?
  A)
  \[C{{H}_{3}}C{{H}_{2}}CH=C{{H}_{2}}\] done clear
  B)
  \[C{{H}_{3}}COOC{{H}_{2}}C{{H}_{3}}\] done clear
  C)
  \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}OH\] done clear
  D)
  \[C{{H}_{2}}(OH)C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}OH\] done clear
  View Solution play_arrow

• question_answer26)
  Which of the following reactions would convert 2-butanol into deuterated compound \[C{{H}_{3}}-C{{H}_{2}}-\underset{D}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-C{{H}_{3}}\] ?
  A)
  done clear
  B)
  done clear
  C)
  done clear
  D)
  done clear
  View Solution play_arrow

• question_answer27)
  To prepare 3-ethylpentan-3-ol, the reagents needed are:
  A)
  \[C{{H}_{3}}C{{H}_{2}}MgBr+C{{H}_{3}}COC{{H}_{2}}C{{H}_{3}}\] done clear
  B)
  \[C{{H}_{3}}MgBr+C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}COC{{H}_{2}}C{{H}_{3}}\] done clear
  C)
  \[C{{H}_{3}}C{{H}_{2}}MgBr+C{{H}_{3}}C{{H}_{2}}COC{{H}_{2}}C{{H}_{3}}\] done clear
  D)
  \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}MgBr+C{{H}_{3}}COC{{H}_{2}}C{{H}_{3}}\] done clear
  View Solution play_arrow

• question_answer28)
  What is X in the following reaction?
  A)
  \[C{{H}_{3}}OH,{{H}_{2}}S{{O}_{4}}\] done clear
  B)
  \[C{{H}_{3}}OH,C{{H}_{3}}{{O}^{-}}\overset{+}{\mathop{N}}\,a\] done clear
  C)
  \[{{H}_{2}}O/{{H}_{2}}S{{O}_{4}}\] followed by \[C{{H}_{3}}OH\] done clear
  D)
  \[C{{H}_{3}}MgBr\]/ ether followed by \[{{H}_{3}}{{O}^{+}}\] done clear
  View Solution play_arrow

• question_answer29)
  What is the major product 6f the following reaction? \[C{{H}_{3}}-\overset{OH}{\mathop{\overset{|}{\mathop{C}}\,}}\,H-C{{H}_{2}}-C{{H}_{2}}-OH\] \[\xrightarrow[\operatorname{Pyridine}\,cold]{Cr{{O}_{3}}}\Pr oduct\]
  A)
  \[C{{H}_{3}}-\overset{OH}{\mathop{\overset{|}{\mathop{C}}\,}}\,H-C{{H}_{2}}-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-H\] done clear
  B)
  \[C{{H}_{3}}-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-C{{H}_{2}}-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-H\] done clear
  C)
  \[C{{H}_{3}}-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-C{{H}_{2}}-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-OH\] done clear
  D)
  \[C{{H}_{3}}-\overset{OH}{\mathop{\overset{|}{\mathop{C}}\,}}\,H-C{{H}_{2}}-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-OH\] done clear
  View Solution play_arrow

• question_answer30)
  A compound of the formula \[{{C}_{4}}{{H}_{10}}O\] reacts with sodium and undergoes oxidation to give a carbonyl compound which does not reduce Tollen's reagent, the original compound is
  A)
  Diethyl ether       done clear
  B)
  n-Butyl alcohol done clear
  C)
  Isobutyl alcohol done clear
  D)
  sec-Butyl alcohol done clear
  View Solution play_arrow

• question_answer31)
  What amount of bromine will be required to convert 2g of phenol into 2,4,6-tribromophenol?
  A)
  4.0                    done clear
  B)
  6.0    done clear
  C)
  10.22                done clear
  D)
  20.44 done clear
  View Solution play_arrow

• question_answer32)
  Identify X in the following sequence: \[\underset{(X)}{\mathop{{{C}_{3}}{{H}_{8}}O}}\,\xrightarrow[{{H}_{2}}S{{O}_{4}}]{{{K}_{2}}C{{r}_{2}}{{O}_{7}}}{{C}_{3}}{{H}_{6}}O\xrightarrow[{{I}_{2}}+NaOH]{warn}CH{{I}_{3}}\]
  A)
  \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}OH\] done clear
  B)
  \[C{{H}_{3}}CH(OH)C{{H}_{3}}\] done clear
  C)
  \[C{{H}_{3}}OC{{H}_{2}}C{{H}_{3}}\]         done clear
  D)
  \[C{{H}_{3}}C{{H}_{2}}CHO\] done clear
  View Solution play_arrow

• question_answer33)
  tert-Butyl ethyl ether can't be prepared by which reaction?
  A)
  tert- Butanol + ethanol \[\xrightarrow{{{H}^{+}}}\] done clear
  B)
  tert-Butyl bromide + sodium ethoxide \[\to \] done clear
  C)
  Sodium tert-butoxide + ethyl bromide \[\to \] done clear
  D)
  Isobutene + ethanol \[\xrightarrow{{{H}^{+}}}\] done clear
  View Solution play_arrow

• question_answer34)
  Succinic acid \[\xrightarrow{\Delta }(A)\xrightarrow[\Delta ]{N{{H}_{3}}}(B)\xrightarrow[KOH]{B{{r}_{2}}}(C);\] Product [C] will be:
  A)
  done clear
  B)
    done clear
  C)
  done clear
  D)
  done clear
  View Solution play_arrow

• question_answer35)
  Find missing reagents.
  A)
  \[x=LiAl{{H}_{4}},y=NaB{{H}_{4}}\] done clear
  B)
  \[x=LiAl{{H}_{4}}/AlC{{l}_{3}},y=Lial{{H}_{4}}\] done clear
  C)
  \[x=LiAl{{H}_{4}},y=LiAl{{H}_{4}}/AlC{{l}_{3}}\] done clear
  D)
  \[x={{H}_{2}}/Ni,y={{H}_{2}}/Pt\] done clear
  View Solution play_arrow

• question_answer36)
  Diethyl ether reacts, inspite of its usual inert nature, with:
  A)
  Dilute suphuric acid done clear
  B)
  Dilute sodium hydroxide done clear
  C)
  Boron trifluoride done clear
  D)
  Metallic sodium done clear
  View Solution play_arrow

• question_answer37)
  Give the best conditions for this transformation:
  A)
  \[C{{H}_{3}}OH,{{H}^{+}}\](cat),heat done clear
  B)
  \[{{H}_{2}}O,{{H}^{+}}\] (cat), heat done clear
  C)
  Mg, ether, \[C{{H}_{3}}OH\] done clear
  D)
  \[SOC{{l}_{2}},C{{H}_{3}}OH\] done clear
  View Solution play_arrow

• question_answer38)
  The order of reactivity of the following alcohols towards cone. \[HCl\] is

  (I)	(II)
  (III)	(IV)

  A)
  I>II>III>IV                   done clear
  B)
  I>III>II>IV done clear
  C)
  IV>III>II>I                   done clear
  D)
  IV>III>I>II   done clear
  View Solution play_arrow

• question_answer39)
  The end product of the following sequence of reactions
  A)
  done clear
  B)
  done clear
  C)
                    done clear
  D)
  done clear
  View Solution play_arrow

• question_answer40)
  An optically active alcohol of formula \[{{C}_{9}}{{H}_{12}}{{O}_{2}}\] produced the following compound when refluxed with \[KMn{{O}_{4}}\] The original compound showed these properties also: What is structure of (A) ?
  A)
                   done clear
  B)
  done clear
  C)
                          done clear
  D)
  both [a] and [b] done clear
  View Solution play_arrow

• question_answer41)
  The product of the following reaction,
  A)
  \[C{{H}_{3}}-\underset{C{{H}_{3}}}{\overset{C{{H}_{3}}}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-\underset{OH}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-C{{H}_{3}}\] done clear
  B)
  \[C{{H}_{3}}-\underset{C{{H}_{3}}}{\overset{C{{H}_{3}}}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-\underset{{}}{\mathop{\underset{{}}{\mathop{C}}\,}}\,{{H}_{2}}-C{{H}_{2}}OH\] done clear
  C)
  \[C{{H}_{3}}-\underset{C{{H}_{3}}}{\overset{OH}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-C{{H}_{3}}\] done clear
  D)
  \[HOC{{H}_{2}}-\underset{C{{H}_{3}}}{\overset{C{{H}_{3}}}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-\underset{{}}{\mathop{\underset{{}}{\mathop{C}}\,}}\,{{H}_{2}}-C{{H}_{3}}\] done clear
  View Solution play_arrow

• question_answer42)
  An aromatic ether is not cleaved by HI even at 525 K. The compound is
  A)
  \[{{C}_{6}}{{H}_{5}}OC{{H}_{3}}\]              done clear
  B)
  \[{{C}_{6}}{{H}_{5}}O{{C}_{6}}{{H}_{5}}\] done clear
  C)
  \[{{C}_{6}}{{H}_{5}}O{{C}_{3}}{{H}_{7}}\]                        done clear
  D)
  Tetrahydrofuran done clear
  View Solution play_arrow

• question_answer43)
  Which of the following reactions will not result in the formation of anisole?
  A)
  Phenol + dimethyl sulphate in presence of a base done clear
  B)
  Sodium phenoxide is treated with methyl iodide done clear
  C)
  Reaction of diazomethane with phenol done clear
  D)
  Reaction of methylmagnesium iodide with phenol done clear
  View Solution play_arrow

• question_answer44)
  Which of the following is not true in case of reaction with heated copper at \[300{}^\circ C\]?
  A)
  Phenol \[\xrightarrow{{}}\] Benzyl alcohol done clear
  B)
  Primary alcohol\[\xrightarrow{{}}\] Aldehyde done clear
  C)
  Secondary alcohol \[\xrightarrow{{}}\] Ketone done clear
  D)
  Tertiary alcohol \[\xrightarrow{{}}\] Olefin done clear
  View Solution play_arrow

• question_answer45)
  Which of the following synthesis gives 3 -methyl. 1- hexanol?  
  A)
  2- bromohexane \[\xrightarrow[{{C}_{2}}{{H}_{5}}O{{C}_{2}}{{H}_{5}}]{Mg}\,\,\xrightarrow[(ii)\,{{H}_{3}}{{O}^{+}}]{(i)\,{{H}_{2}}C=\,O}\] done clear
  B)
  2- bromopentane \[\xrightarrow[{{C}_{2}}{{H}_{5}}O{{C}_{2}}{{H}_{5}}]{Mg}\] done clear
  C)
  3- bromopantane \[\xrightarrow[{{C}_{2}}{{H}_{5}}O{{C}_{2}}{{H}_{5}}]{Mg}\] \[\xrightarrow[(ii)\,{{H}_{3}}{{O}^{+}}]{(i)\,C{{H}_{3}}CH=O}\] done clear
  D)
  1- bromobutane \[\xrightarrow[{{C}_{2}}{{H}_{5}}O{{C}_{2}}{{H}_{5}}]{Mg}\] \[\xrightarrow[(ii)\,{{H}_{3}}{{O}^{+}}]{(i)\,C{{H}_{3}}COC{{H}_{3}}}\] done clear
  View Solution play_arrow

• question_answer46)
  What is the product of the following sequence of reactions? \[{{\left( C{{H}_{3}} \right)}_{2}}C=CH.C{{H}_{2}}C{{H}_{3}}~\xrightarrow[(ii)\,{{H}_{2}}{{O}_{2}},O{{H}^{-}}]{\left( i \right)B{{H}_{3}}/THF}\] \[\xrightarrow[C{{H}_{2}}C{{l}_{2}}]{PCC}\,\,\xrightarrow[(ii)\,{{H}_{3}}{{O}^{+}}]{(i)\,C{{H}_{3}}MgBr}\]
  A)
  2, 4- dimethyl - 3 - pentanol done clear
  B)
  2, 3- dimethyl - 3 - pentanol done clear
  C)
  2, 3 - dimethyl - 2 - pentanol done clear
  D)
  2, 2- dimethyl - 3 - pentanol done clear
  View Solution play_arrow

• question_answer47)
  Which of the following are intermediates in the reaction of excess of \[C{{H}_{3}}MgBr\] with \[{{C}_{6}}{{H}_{5}}COO{{C}_{2}}{{H}_{5}}\] to make 2-phenyl - 2-propanol?

  A. \[{{C}_{6}}{{H}_{5}}-\underset{C{{H}_{3}}}{\overset{OMgBr}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-OC{{H}_{2}}C{{H}_{3}}\]

  B. \[{{C}_{6}}{{H}_{5}}-\underset{{}}{\overset{O}{\mathop{\underset{{}}{\overset{||}{\mathop{C}}}\,}}}\,-C{{H}_{3}}\]

  C. \[{{C}_{6}}{{H}_{5}}-\underset{C{{H}_{3}}}{\overset{OMgBr}{\mathop{\underset{|}{\overset{||}{\mathop{C}}}\,}}}\,-C{{H}_{3}}\]

  A)
  A and B  done clear
  B)
  A, B and C done clear
  C)
  A and C            done clear
  D)
  B and C done clear
  View Solution play_arrow

• question_answer48)
  Which of the following compound can react with hydroxylamine?
  A)
                   done clear
  B)
  done clear
  C)
  done clear
  D)
  done clear
  View Solution play_arrow

• question_answer49)
  Acetic anhydride reacts with diethyl ether in the presence of anhydrous \[AlC{{l}_{3}}\] to give
  A)
  \[C{{H}_{3}}COOC{{H}_{3}}\]           done clear
  B)
  \[C{{H}_{3}}C{{H}_{2}}COOC{{H}_{3}}\] done clear
  C)
  \[C{{H}_{3}}COOC{{H}_{2}}C{{H}_{3}}\] done clear
  D)
  \[C{{H}_{3}}C{{H}_{2}}OH\] done clear
  View Solution play_arrow

• question_answer50)
  In the following reaction. \[{{C}_{2}}{{H}_{5}}O{{C}_{2}}{{H}_{5}}+4H\xrightarrow{Red\,P+HI}2X+{{H}_{2}}O;\] X is
  A)
  ethane    done clear
  B)
  ethylene done clear
  C)
  butane                           done clear
  D)
  propane done clear
  View Solution play_arrow

• question_answer51)
  n-propyl alcohol and isopropyl alcohol can be chemically distinguished by which reagent
  A)
  \[PC{{l}_{5}}\] done clear
  B)
  reduction done clear
  C)
  oxidation with potassium dichromate done clear
  D)
  ozonolysis done clear
  View Solution play_arrow

• question_answer52)
  An organic compound A reacts with methyl magnesium iodide to form an addition product which on hydrolysis forms the compound B. Compound B gives blue colour salt in Victor Meyer's test. The compounds A and B are respectively
  A)
  acetaldehyde, tertiary butyl alcohol done clear
  B)
  acetaldehyde, ethyl alcohol done clear
  C)
  acetaldehyde, isopropyl alcohol done clear
  D)
  acetone, isopropyl alcohol done clear
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• question_answer53)
  Identify the major product,
  A)
    done clear
  B)
  done clear
  C)
      done clear
  D)
  done clear
  View Solution play_arrow

• question_answer54)
  When Grignard reagent reacts with [B] product [D] will obtained. Reactant [A] of the above reaction is:
  A)
             done clear
  B)
  done clear
  C)
                    done clear
  D)
  done clear
  View Solution play_arrow

• question_answer55)
  Diols (I-IV) which react with \[Cr{{O}_{3}}\] in aqueous \[{{H}_{2}}S{{O}_{4}}\] and yield products that readily under go dercarboxylation on heating, are:            

  (I)	(II)
  (III)	(IV)

  A)
  I and II              done clear
  B)
  II and III done clear
  C)
  II and IV     done clear
  D)
  I and IV done clear
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• question_answer56)
  \[C{{H}_{3}}\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-CH=C{{H}_{2}}\] \[\xrightarrow[(ii)\,{{H}_{2}}{{O}_{2}}/O{{H}^{-}}]{(i)\,{{B}_{2}}{{H}_{6}}}X\xrightarrow[140{}^\circ C]{{{H}_{2}}S{{O}_{4}}}Y.\] What is Y?
  A)
  \[C{{H}_{3}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-C{{H}_{2}}-C{{H}_{2}}-O-\] \[C{{H}_{2}}-C{{H}_{2}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-C{{H}_{3}}\] done clear
  B)
  \[C{{H}_{3}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-CH=C{{H}_{2}}\] done clear
  C)
  \[C{{H}_{3}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-O-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-C{{H}_{3}}\] done clear
  D)
  \[C{{H}_{3}}-\underset{{}}{\mathop{\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{\underset{{{C}_{2}}{{H}_{5}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,}}\,}}\,}}\,-O-\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{\underset{{{C}_{2}}{{H}_{5}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,}}\,}}\,H-C{{H}_{3}}\] done clear
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• question_answer57)
  Identify Z in the sequence: \[C{{H}_{3}}C{{H}_{2}}CH=C{{H}_{2}}\xrightarrow{HBr/{{H}_{2}}{{O}_{2}}}\] \[Y\xrightarrow{{{C}_{2}}{{H}_{5}}ONa}Z\]
  A)
  \[{{(C{{H}_{3}})}_{2}}COHC{{H}_{2}}C{{H}_{3}}\] done clear
  B)
  \[C{{H}_{3}}C{{H}_{2}}CH\left( C{{H}_{3}} \right)-O-C{{H}_{2}}C{{H}_{3}}\] done clear
  C)
  \[C{{H}_{3}}{{\left( C{{H}_{2}} \right)}_{3}}-O-C{{H}_{2}}C{{H}_{3}}\] done clear
  D)
  \[C{{H}_{3}}{{\left( C{{H}_{2}} \right)}_{4}}-O-C{{H}_{3}}\] done clear
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• question_answer58)
  \[C{{H}_{3}}-CH=C{{H}_{2}}\xrightarrow[(ii)\,NaB{{H}_{4}}]{(i)\,Hg{{(OAc)}_{2}}/{{H}_{2}}O}X+Na\] \[\xrightarrow{{}}Y+C{{H}_{3}}Cl\xrightarrow{{}}Z+HI\xrightarrow{0{}^\circ C}A+B\] What are A and B?
  A)
  \[C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}-OH\And C{{H}_{3}}I\] done clear
  B)
  \[C{{H}_{3}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-OH\And C{{H}_{3}}I\] done clear
  C)
  \[C{{H}_{3}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-I\And C{{H}_{3}}OH\] done clear
  D)
  \[C{{H}_{3}}-C{{H}_{2}}C{{H}_{2}}I\And C{{H}_{3}}OH\] done clear
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• question_answer59)
  \[{{H}_{2}}C=CH-C{{H}_{2}}-C{{H}_{2}}-\underset{OH}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-C{{H}_{3}}\] \[\xrightarrow[Pyridine]{SOC{{l}_{2}}}(A)\xrightarrow[({{H}_{2}}O)]{{{O}_{3}}/Zn}\underset{{{C}_{5}}{{H}_{9}}ClO}{\mathop{(B)}}\,\xrightarrow{NaB{{H}_{4}}}(C)\] Compound (C) is
  A)
  \[C{{H}_{3}}-\overset{OH}{\mathop{\overset{|}{\mathop{C}}\,}}\,H-C{{H}_{2}}-\underset{Cl}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-C{{H}_{3}}\] done clear
  B)
  \[HOC{{H}_{2}}-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{2}}-Cl\] done clear
  C)
  \[HO-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{2}}-\overset{Cl}{\mathop{\overset{|}{\mathop{C}}\,}}\,H-C{{H}_{3}}\] done clear
  D)
  \[HO-C{{H}_{2}}-C{{H}_{2}}-\underset{Cl}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-C{{H}_{2}}-C{{H}_{3}}\] done clear
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• question_answer60)
  \[\underset{\left( {{C}_{5}}{{H}_{10}}O \right)}{\mathop{\left( X \right)}}\,~\xrightarrow{{{H}_{3}}{{O}^{+}}}Y+Z\] (Y and Z both give the lodoform test). The compound X is -
  A)
  \[C{{H}_{3}}-CH=CH-O-C{{H}_{2}}-C{{H}_{3}}\] done clear
  B)
  \[C{{H}_{3}}-\underset{C{{H}_{3}}}{\overset{H}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-O-C{{H}_{2}}-C{{H}_{3}}\] done clear
  C)
  \[C{{H}_{3}}-\underset{C{{H}_{2}}}{\overset{{}}{\mathop{\underset{||}{\overset{{}}{\mathop{C}}}\,}}}\,-O-C{{H}_{2}}-C{{H}_{3}}\] done clear
  D)
  Both [a] and [c] done clear
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• question_answer61)
  What is the major product of the following reaction?
  A)

  \[OC{{H}_{2}}C{{H}_{3}}\]

                     done clear
  B)
  done clear
  C)
  done clear
  D)
    done clear
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• question_answer62)
  Dehydration of alcohols by conc. \[{{H}_{2}}S{{O}_{4}}\] takes place according to following steps:       The slowest and fastest steps in the above reaction are
  A)
  step 1 is slowest, while 3 is fastest. done clear
  B)
  step 2 is slowest, while 3 is fastest. done clear
  C)
  step 2 is slowest, while 4 is fastest. done clear
  D)
  all steps proceed at equal rate. done clear
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• question_answer63)
  In order to get 2-hydroxybenzaldehyde from phenol, which of the following reagents is required?
  A)
  \[{{(C{{H}_{3}}CO)}_{2}}O,{{H}_{2}}S{{O}_{4}}\] done clear
  B)
  \[CHC{{l}_{3}}/NaOH\] done clear
  C)
  \[C{{O}_{2}},NaOH\]               done clear
  D)
  \[CC{{l}_{4}}/NaOH\] done clear
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• question_answer64)
  The structure of the product formed in the reaction given below is:
  A)
  done clear
  B)
  done clear
  C)
      done clear
  D)
  done clear
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• question_answer65)
  The most probable product in the reaction given below is
  A)
                     done clear
  B)
  done clear
  C)
                          done clear
  D)
  done clear
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• question_answer66)
  Which of the following alcohols is dehydrated most readily with cone.\[{{H}_{2}}S{{O}_{4}}\]?
  A)
  done clear
  B)
  done clear
  C)
  • 
  • \[N{{O}_{2}}\]

  done clear
  D)
  • 
  • \[Cl\]

  done clear
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• question_answer67)
  Identify the nature of product in the following reaction
  A)
    done clear
  B)
  done clear
  C)
                     done clear
  D)
  done clear
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• question_answer68)
  Which one of the following compounds has the most acidic nature?
  A)
  done clear
  B)
  done clear
  C)
      done clear
  D)
    done clear
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• question_answer69)
  The major product P in the following reaction is \[{{\left( C{{H}_{3}} \right)}_{3}}COH+{{C}_{2}}{{H}_{5}}OH\xrightarrow{H+}P\]
  A)
  \[{{\left( C{{H}_{3}} \right)}_{3}}COC{{\left( C{{H}_{3}} \right)}_{3}}\] done clear
  B)
  \[{{\left( C{{H}_{3}} \right)}_{3}}CO{{C}_{2}}{{H}_{5}}\] done clear
  C)
  \[{{C}_{2}}{{H}_{5}}O{{C}_{2}}{{H}_{5}}\] done clear
  D)
  \[{{\left( C{{H}_{3}} \right)}_{2}}C=C{{H}_{2}}\] done clear
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• question_answer70)
  Correct increasing order of acidity is as follows
  A)
  \[{{H}_{2}}O,{{C}_{2}}{{H}_{2}},{{H}_{2}}C{{O}_{3}}\], phenol done clear
  B)
  \[{{C}_{2}}{{H}_{2}},{{H}_{2}}O,{{H}_{2}}C{{O}_{3}}\], phenol done clear
  C)
  phenol, \[{{C}_{2}}{{H}_{2}},{{H}_{2}}C{{O}_{3}},{{H}_{2}}O\] done clear
  D)
  \[{{C}_{2}}{{H}_{2}},{{H}_{2}}O\], phenol, \[,{{H}_{2}}C{{O}_{3}}\] done clear
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• question_answer71)
  Which one/ones of the following reactions will yield 2-propanol?

  I. \[C{{H}_{2}}=CH-C{{H}_{3}}+{{H}_{2}}O\xrightarrow{H+}\]

  II. \[C{{H}_{3}}-CHO\xrightarrow[(ii)\,{{H}_{2}}O]{(i)\,C{{H}_{3}}MgI}\]

  III. \[C{{H}_{2}}O\xrightarrow[(ii)\,{{H}_{2}}O]{(i)\,{{C}_{2}}{{H}_{5}}MgI}\]

  IV. \[C{{H}_{2}}=CH-C{{H}_{3}}\xrightarrow{Neutral\,KMn{{O}_{4}}}\]

  A)
  I and II                          done clear
  B)
  II and III done clear
  C)
  III and I             done clear
  D)
  II and IV done clear
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• question_answer72)
  What is Z in the following sequence of reactions? \[Z\xrightarrow{PC{{l}_{5}}}X\xrightarrow{~Alc.KOH}~Y~\xrightarrow[\left( ii \right){{H}_{2}}O;\text{ }boil]{\left( i \right)Conc.{{H}_{2}}S{{O}_{4}}~}Z\]
  A)
  \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}OH\] done clear
  B)
  \[C{{H}_{3}}CH(OH)C{{H}_{3}}\] done clear
  C)
  \[{{(C{{H}_{3}}C{{H}_{2}})}_{2}}CHOH\] done clear
  D)
  \[C{{H}_{3}}CH=C{{H}_{2}}\] done clear
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• question_answer73)
  Which of the following has lowest boiling point?
  A)
  p-Nitrophenol    done clear
  B)
  m-Nitrophenol done clear
  C)
  o-Nitrophenol    done clear
  D)
  Phenol done clear
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• question_answer74)
  Arrange the following in increasing order of their acidity? [a] o-cresol, [b] salicylic acid, [c] phenol
  A)
  \[c<a<b\]          done clear
  B)
  \[b<c<a\] done clear
  C)
  \[a<b<a\]         done clear
  D)
  \[a<c<b\] done clear
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• question_answer75)
  Which of the following diols would cleave into two fragments with \[HI{{O}_{4}}\]
  A)
  1, 3-hexanediol    done clear
  B)
  2, 4-hexanediol done clear
  C)
  1, 6-hexanediol    done clear
  D)
  3, 4-hexanediol done clear
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• question_answer76)
  In the reaction: \[C{{H}_{3}}-\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,H-C{{H}_{2}}-O-C{{H}_{2}}-C{{H}_{3}}+HI\xrightarrow{Heated}\]Which of the following compounds will be formed?
  A)
  \[C{{H}_{3}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-C{{H}_{3}}+C{{H}_{3}}C{{H}_{2}}OH\] done clear
  B)
  \[C{{H}_{3}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-C{{H}_{2}}OH+C{{H}_{3}}C{{H}_{3}}\] done clear
  C)
  \[C{{H}_{3}}-\underset{{}}{\mathop{\underset{{}}{\mathop{\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,}}\,}}\,H-C{{H}_{2}}OH+C{{H}_{3}}-C{{H}_{2}}-I\] done clear
  D)
  \[C{{H}_{3}}-\underset{{}}{\mathop{\underset{{}}{\mathop{\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,}}\,}}\,H-C{{H}_{2}}-I+C{{H}_{3}}C{{H}_{2}}OH\] done clear
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• question_answer77)
  The following change can be carried out with
  A)
  \[NaB{{H}_{4}}\]                     done clear
  B)
  \[LiAI{{H}_{4}}\] done clear
  C)
  \[{{H}_{2}}/Pt\]                        done clear
  D)
  \[PCC/C{{H}_{2}}C{{l}_{2}}\] done clear
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• question_answer78)
   Product is
  A)
                     done clear
  B)
  done clear
  C)
  mixture of [a] and [b] done clear
  D)
  done clear
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• question_answer79)
  Ethanol can be prepared more easily by which reaction?

  (i) \[C{{H}_{3}}C{{H}_{2}}Br+{{H}_{2}}O\xrightarrow{{}}C{{H}_{3}}C{{H}_{2}}OH\]

  (ii) \[C{{H}_{3}}C{{H}_{2}}Br+A{{g}_{2}}O\left( in\text{ }boiling\text{ }water \right)\xrightarrow{{}}\] \[C{{H}_{3}}C{{H}_{2}}OH\]

  A)
  by (i) reaction done clear
  B)
  by (ii) reaction done clear
  C)
  Both reactions proceed at same rate done clear
  D)
  by none done clear
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• question_answer80)
  3 moles of ethanol react with one mole of phosphorus tribromide to form 3 moles of bromoethane and one mole of X. Which of the following is X?
  A)
  \[{{H}_{3}}P{{O}_{4}}\]                     done clear
  B)
  \[{{H}_{3}}P{{O}_{2}}\] done clear
  C)
  \[HP{{O}_{3}}\]                       done clear
  D)
  \[{{H}_{3}}P{{O}_{3}}\] done clear
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