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

done Organic Chemistry Total Questions - 22

• question_answer1)
  The enzyme involved in the oxidation of ethanol to form vinegar is
  A)
  zymase                            done clear
  B)
  oxidase done clear
  C)
  acetobacter      done clear
  D)
           invertase done clear
  View Solution play_arrow

• question_answer2)
        The main constituent of Vinegar is: [NDA]
  A)
  Acetic acid  done clear
  B)
           Ascorbic acid done clear
  C)
  Citric acid               done clear
  D)
           Tartaric acid done clear
  View Solution play_arrow

• question_answer3)
        Soaps are sodium salts of fatty acids. Which of the following tatty acid does not form soap?
  A)
  Butyric acid done clear
  B)
           Oleic acid done clear
  C)
  Palmitic acid    done clear
  D)
           Stearic acid done clear
  View Solution play_arrow

• question_answer4)
        Identify the enzyme which converts glucose to ethyl alcohol.
  A)
  Zymase       done clear
  B)
           Invertase done clear
  C)
  Maltase                  done clear
  D)
           Diastase done clear
  View Solution play_arrow

• question_answer5)
        Mineral acids are stronger acids than carboxylic acids because

  A. mineral acids are completely ionised

  B. carboxylic acids are completely ionised

  C. mineral acids are partially ionised

  D. carboxylic acids are partially ionised

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

• question_answer6)
       

  'Drinking alcohol' is very harmful and it ruins the health.

  'Drinking alcohol' stands for:

   
  A)
  drinking methyl alcohol done clear
  B)
  drinking ethyl alcohol done clear
  C)
  drinking propyl alcohol done clear
  D)
  drinking isopropyl alcohol done clear
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• question_answer7)
        Which of the following has shortest carbon-carbon bond length?
  A)
  \[{{C}_{2}}{{H}_{2}}\]           done clear
  B)
  \[{{C}_{2}}{{H}_{4}}\] done clear
  C)
  \[{{C}_{2}}{{H}_{6}}\]           done clear
  D)
           \[{{C}_{6}}{{H}_{6}}\] done clear
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• question_answer8)
        Which of the following can be used distinguish between ethane and ethene?
  A)
  A lighted splinter done clear
  B)
  Aqueous bromine done clear
  C)
  Litmus solution done clear
  D)
  Lime water done clear
  View Solution play_arrow

• question_answer9)
       

  	Column-I		Column-II
  A.	Carbon black	P.	Water filters.
  B.	Diamond	Q.	Fuel
  C.	Coke	R.	Jewellery
  D.	Charcoal	S.	Filler in automobiles

   
  A)
  A-Q;   B-R;   C-S;   D-P done clear
  B)
  A-P;   B-Q;   C-Q;   D-S done clear
  C)
  A-S;   B-R;   C-P;   D-Q done clear
  D)
  A-S;   B-R;   C-Q;   D-P done clear
  View Solution play_arrow

• question_answer10)
       

  	Column-I		Column-II
  A.	Polyethylene	P.	wood glue
  B.	Cellulose acetate	Q.	Soft drinks
  C.	Polyvinyl acetate	R.	Descaling agents
  D.	Dil Acetic acid	S.	Photographic film.

   
  A)
  A-Q;   B-S;   C-P;   D-R done clear
  B)
  A-S;   B-Q;   C-P;   D-R done clear
  C)
  A-Q;   B-S;   C-R;   D-P done clear
  D)
  A-S;   B-Q;   C-R;   D-P done clear
  View Solution play_arrow

• question_answer11)
        Gas welding used for welding broken pieces of iron, we normally use a mixture of:
  A)
  ethane and oxygen done clear
  B)
  ethene and oxygen done clear
  C)
  ethyne and oxygen done clear
  D)
  ethene and air done clear
  View Solution play_arrow

• question_answer12)
        On the basis of following features identify the correct option

  A. Drinks containing ethanol

  B. These drinks are major source of income to government

  A)
  Alcoholic beverages done clear
  B)
  Soft drinks done clear
  C)
  Carbonated beverages done clear
  D)
  Rectified spirit done clear
  View Solution play_arrow

• question_answer13)
        The flavour of apple is mainly due to which one of the following? [CDS]
  A)
  Formalin          done clear
  B)
           Benzene done clear
  C)
  Ethanol       done clear
  D)
           Benzaldehyde done clear
  View Solution play_arrow

• question_answer14)
        Which of the following has maximum density [CDS]
  A)
  Chloroform        done clear
  B)
           Water done clear
  C)
  Benzene           done clear
  D)
           Ice done clear
  View Solution play_arrow

• question_answer15)
        Addition of ethylene dibromide to petrol [CDS]
  A)
  increases the octane number of fuel done clear
  B)
  helps elimination of lead oxide done clear
  C)
  removes the sulphur compound in petrol done clear
  D)
  serves as a substitute of tetraethyl lead done clear
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• question_answer16)
        The offending substance in the liquor tragedies leading to blindness etc., is [IAS Prelim]
  A)
  ethyl alcohol       done clear
  B)
           amyl alcohol done clear
  C)
  benzyl alcohol      done clear
  D)
           methyl alcohol done clear
  View Solution play_arrow

• question_answer17)
        The characteristic odour of garlic is due to [IAS Prelim]
  A)
  a chloro compound done clear
  B)
  a sulphur compound done clear
  C)
  a fluorine compound done clear
  D)
  acetic acid done clear
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• question_answer18)
        Which one of the following is an active component of oil of clove? [IAS Prelim]
  A)
  Menthol           done clear
  B)
                    Eugenol done clear
  C)
  Methanol          done clear
  D)
           Benzaldehyde done clear
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• question_answer19)
        Consider the following statements about acetylene: [IAS Prelim]

  1. It is used in welding industry

  2. It is a raw material for preparing plastics

  3. It is easily obtained by mixing silicon carbide and water of these statements

                        
  A)
  1 and 2 are correct done clear
  B)
  1 and 3 are correct done clear
  C)
  2 and 3 are correct                     done clear
  D)
  1, 2 and 3 are correct done clear
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• question_answer20)
        Which one of the following is the correct sequence in increasing order of molecular weights of the hydrocarbons? [IAS Prelim]
  A)
  Methane, ethane, propane and butane done clear
  B)
  Propane, butane, ethane and methane done clear
  C)
  Butane, ethane, propane and methane done clear
  D)
  Butane, propane, ethane and methane done clear
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• question_answer21)
       

  Assertion [A]: The main constituent of the liquefied petroleum gas is methane.

  Reason [R]: Methane can be used directly for burning in homes and factories where it can be supplied through pipelines. [IAS Prelim]

                    
  A)
  Both A and R are true and R is the correct explanation of A done clear
  B)
  Both A and R are true but R is not the correct explanation of A done clear
  C)
  A is true but R is false done clear
  D)
  A is false but R is true done clear
  View Solution play_arrow

• question_answer22)
        A bee-sting leaves an acid which causes pain and irritation. The injected acid is [NDA]
  A)
  acetic acid          done clear
  B)
           sulphuric acid done clear
  C)
  citric acid           done clear
  D)
           methanoic acid done clear
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