Banking Chemistry Organic Chemistry: Some Basic Principles & Techniques / कार्बनिक रसायन : कुछ मूलभूत सिद्धांत एवं तकन Question Bank

done General Organic Chemistry Total Questions - 22

• question_answer1)
  Two adjacent members of a homologous series have:
  A)
  a difference of \[-C{{H}_{2}}\] in their structure done clear
  B)
  a difference of 14 a.m.u. in molecular mass done clear
  C)
  same general methods of preparation done clear
  D)
  all of the above done clear
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• question_answer2)
  Alkenes are characterized by
  A)
  C - C bonds                   done clear
  B)
  \[C=C\] bonds done clear
  C)
  \[C\equiv C\] bonds       done clear
  D)
         cyclic structure done clear
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• question_answer3)
  Which of the following contains carbonyl group?
  A)
  Ketones             done clear
  B)
  Aldehydes done clear
  C)
  Esters               done clear
  D)
         All of these done clear
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• question_answer4)
  The functional group present in \[C{{H}_{3}}COO{{C}_{2}}{{H}_{5}}\] is
  A)
   ketonic                         done clear
  B)
   aldehydic done clear
  C)
   ester                  done clear
  D)
          carboxylic done clear
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• question_answer5)
  Butanone is a four-carbon compound with the functional group
  A)
   carboxylic acid              done clear
  B)
   aldehyde done clear
  C)
   ketone                 done clear
  D)
          alcohol done clear
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• question_answer6)
  Which of the following is incorrectly matched?
  A)
   Vinegar \[Vinegar\to Carboxylicacid\] done clear
  B)
   \[{{C}_{2}}{{H}_{6}}\to alkane\] done clear
  C)
   \[Ethanol\to alcohol\] done clear
  D)
   \[Methanol\to Ketone\]   done clear
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• question_answer7)
  If a hydrocarbon has any double bond, it is
  A)
   alkyne                          done clear
  B)
   alkane done clear
  C)
   alkene                 done clear
  D)
          All the above done clear
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• question_answer8)
  Alkynes are characterized by -
  A)
   C - C bonds                  done clear
  B)
   C = C bonds done clear
  C)
   \[C\equiv C\]  bonds        done clear
  D)
          cyclic structure done clear
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• question_answer9)
   How many different isomers are possible for a hydrocarbon with the molecular formula \[{{C}_{4}}{{H}_{10}}\]
  A)
   1                    done clear
  B)
   2   done clear
  C)
   3                    done clear
  D)
          5 done clear
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• question_answer10)
  The general formula \[{{C}_{n}}{{H}_{2n}}{{O}_{2}}\] could be for open chain
  A)
   diketones                      done clear
  B)
   carboxylic acids   done clear
  C)
   diols                done clear
  D)
          dialdehydes done clear
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• question_answer11)
  The IUPAC name of \[C{{H}_{3}}C{{H}_{2}}COCI\] is
  A)
   propanoyl chloride           done clear
  B)
   ethanoyl chloride done clear
  C)
   acetyl chloride      done clear
  D)
          chloroethane done clear
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• question_answer12)
  General formula of alkenes and alkyl radicals are respectively:
  A)
   \[{{C}_{n}}{{H}_{2n}}\]and \[Cn{{H}_{2n+1}}\]          done clear
  B)
   \[Cn{{H}_{2n}}\]and \[Cn{{H}_{2n+2}}\] done clear
  C)
   \[Cn{{H}_{2n-1}}\] and \[Cn{{H}_{2n}}\] done clear
  D)
   \[Cn{{H}_{2n+1}}\]and \[Cn{{H}_{2n+2}}\] done clear
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• question_answer13)
  The IUPAC name of \[C{{H}_{3}}COO{{C}_{2}}{{H}_{5}}\] CH3COOC2H5 will be -
  A)
   ethyl acetate                 done clear
  B)
   ethyl ethanoate   done clear
  C)
   methyl propanoate         done clear
  D)
   none of these done clear
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• question_answer14)
  While cooking, if the bottom of the vessel is getting blackened on the outside, it means that
  A)
   the food is not cooked completely. done clear
  B)
   the fuel is not burning completely.   done clear
  C)
   the fuel is wet. done clear
  D)
   the fuel is burning completely. done clear
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• question_answer15)
  Which is a general formula of alkenes?
  A)
   \[{{C}_{n}}{{H}_{2n+2}}\]                done clear
  B)
   \[{{C}_{n}}{{H}_{2n}}\],   done clear
  C)
   \[{{C}_{n}}{{H}_{2n-2}}\]            done clear
  D)
          None of these done clear
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• question_answer16)
  Organic compounds will always contain
  A)
   carbon                            done clear
  B)
   hydrogen done clear
  C)
   nitrogen             done clear
  D)
          sulphur done clear
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• question_answer17)
  Methane, ethane and propane are said to form a homologous series because all are
  A)
   hydrocarbons   done clear
  B)
   saturated compounds done clear
  C)
   aliphatic compounds done clear
  D)
   differ from each other by a CH group done clear
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• question_answer18)
  General formula of alkyne is
  A)
   \[{{C}_{n}}{{H}_{2n+2}}\]                            done clear
  B)
   \[{{C}_{n}}{{H}_{2n}}\] done clear
  C)
   \[{{C}_{n}}{{H}_{2n-2}}\]            done clear
  D)
          \[{{C}_{n}}{{H}_{n}}\],   done clear
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• question_answer19)
  Which among the following are unsaturated hydrocarbons?

  (i)  \[{{H}_{3}}C-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{3}}\]

  (ii) \[{{H}_{3}}C-C\equiv C-C{{H}_{3}}\]

  (iii) \[{{H}_{3}}C-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-C{{H}_{3}}\]

  (iv) \[{{H}_{3}}C-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,=C{{H}_{2}}\]

  A)
   (i) and (iii)                     done clear
  B)
   (ii) and (iii) done clear
  C)
   (ii) and (iv)             done clear
  D)
          (iii) and (iv) done clear
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• question_answer20)
  Pentane has the molecular formula \[{{C}_{5}}{{H}_{12}}\]. It has
  A)
   5 covalent bonds     done clear
  B)
   12 covalent bonds done clear
  C)
   16 covalent bonds            done clear
  D)
   17 covalent bonds done clear
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• question_answer21)
  The heteroatoms present in\[C{{H}_{3}}-C{{H}_{2}}-O-C{{H}_{2}}Cl\] are

  (i)  oxygen

  (ii) carbon

  (iii) hydrogen

  (iv) chlorine

  A)
   (i) and (ii)                      done clear
  B)
   (ii) and (iii) done clear
  C)
   (iii) and (iv)            done clear
  D)
         (i) and (iv) done clear
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• question_answer22)
  Isomers of a substance must have the same
  A)
  structural formula            done clear
  B)
  physical properties done clear
  C)
  chemical properties          done clear
  D)
  molecular formula done clear
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