UPSC Chemistry Environmental Chemistry / पर्यावरणीय रसायन Question Bank

done Environmental Chemistry Total Questions - 40

• question_answer1)
  Which of the following is not a synthetic fibre:
  A)
  Angora           done clear
  B)
           Rayon done clear
  C)
  Nylon               done clear
  D)
           Polyester done clear
  View Solution play_arrow

• question_answer2)
        Which one of the following is not contained in Portland cement? [NDA]
  A)
  \[C{{a}_{3}}A{{l}_{3}}{{O}_{6}}\]          done clear
  B)
           \[C{{a}_{3}}Si{{O}_{5}}\] done clear
  C)
  \[C{{a}_{2}}Si{{O}_{4}}\]            done clear
  D)
           \[C{{a}_{3}}{{(P{{O}_{4}})}_{2}}\] done clear
  View Solution play_arrow

• question_answer3)
        Which one of the following acids is used for etching glass? [NDA]
  A)
  \[{{H}_{2}}S{{O}_{4}}\]            done clear
  B)
  \[HN{{O}_{3}}\] done clear
  C)
  \[HF\]            done clear
  D)
           \[HCl\] done clear
  View Solution play_arrow

• question_answer4)
        What is the reason for white cement to be white? [NDA]
  A)
  It does not contain carbon done clear
  B)
  It does not contain silicon done clear
  C)
  It does not contain iron done clear
  D)
  It does not contain calcium done clear
  View Solution play_arrow

• question_answer5)
        What is the purpose of adding plasticizers in paint manufacturing process? [NDA]
  A)
  They act as a film-forming constituent done clear
  B)
  They reduce the viscosity done clear
  C)
  They prevent the polymerization and condensation done clear
  D)
  They provide elasticity to the film and minimize its cracking done clear
  View Solution play_arrow

• question_answer6)
        Which fertilizer is assimilated directly by the plant? [NDA]
  A)
  Super phosphate done clear
  B)
       Nitrolim done clear
  C)
  Muriate of Potash done clear
  D)
           Humus done clear
  View Solution play_arrow

• question_answer7)
        Which raw material is used in the preparation of soft glass? [NDA]
  A)
  \[{{K}_{2}}C{{O}_{3}},Si{{o}_{2}},CaC{{O}_{3}}\] done clear
  B)
  \[{{K}_{2}}C{{O}_{3}},Si{{O}_{2}},PbC{{O}_{3}}\] done clear
  C)
  \[N{{a}_{2}}C{{O}_{3}},Si{{O}_{2}},CaC{{O}_{3}}\] done clear
  D)
  \[N{{a}_{2}}C{{O}_{3}},Si{{O}_{2}},PbO\] done clear
  View Solution play_arrow

• question_answer8)
        Which of the following chemicals is used in foam fire extinguishers? [NDA]
  A)
  Aluminium sulphate          done clear
  B)
  Copper sulphate done clear
  C)
  Cobalt sulphate    done clear
  D)
           Nickel sulphate done clear
  View Solution play_arrow

• question_answer9)
        What is the composition of nitrolim - a chemical fertilizer? [NDA]
  A)
  Nitrogen and limestone done clear
  B)
  Calcium carbide and nitrogen done clear
  C)
  Calcium carbide and carbon done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer10)
        What is a mixture of potassium nitrate, powdered charcoal and sulphur called? [NDA]
  A)
  Glass               done clear
  B)
                     Cement done clear
  C)
  Paint                done clear
  D)
                     Gun power done clear
  View Solution play_arrow

• question_answer11)
        Flint glass is obtained from which of the following? [NDA]
  A)
  Zinc and barium borosilicate done clear
  B)
  Sand, red lead and potassium carbonate done clear
  C)
  Sodium aluminium borosilicate? done clear
  D)
  Pure silica and zinc oxide done clear
  View Solution play_arrow

• question_answer12)
        Which one of the following correctly defines the state of glass? [NDA]
  A)
  Crystalline solid   done clear
  B)
           Super cooled liquid done clear
  C)
  Condensed &as                done clear
  D)
  Liquid crystal done clear
  View Solution play_arrow

• question_answer13)
        Which one of the following chemicals is used in beauty parlours for hair-setting? [NDA]
  A)
  Sulphur based     done clear
  B)
           Phosphorus based done clear
  C)
  Silicon based          done clear
  D)
  Iron based done clear
  View Solution play_arrow

• question_answer14)
        The major component used in preparation of different types of glasses is [NDA]
  A)
  Silica           done clear
  B)
           Sodium borate done clear
  C)
  Calcium silicate      done clear
  D)
  Sodium silicate done clear
  View Solution play_arrow

• question_answer15)
        Which one of the following substances is used in the manufacture of safety matches? [CDS]
  A)
  Red phosphorus  done clear
  B)
                                 White phosphorus done clear
  C)
  Phosphorus trioxide (P203) done clear
  D)
  Black phosphorus done clear
  View Solution play_arrow

• question_answer16)
        Which one of the following is used as a mordant in dyeing and tanning industry? [CDS]
  A)
  Magnesium oxide done clear
  B)
      Magnesium carbonate done clear
  C)
  Magnesium chloride done clear
  D)
  Magnesium sulphate done clear
  View Solution play_arrow

• question_answer17)
        Which one of the following polymeric materials is used for making bullet proof jacket? [CDS]
  A)
  Nylon-6, 6           done clear
  B)
           Rayon done clear
  C)
  Kevlar         done clear
  D)
                     Dacron done clear
  View Solution play_arrow

• question_answer18)
        The polymeric fibre used as a substitute for wool in making synthetic blankets, sweaters, etc., is [CDS]
  A)
  nylon                done clear
  B)
                     Teflon done clear
  C)
  orlon           done clear
  D)
  Bakelite done clear
  View Solution play_arrow

• question_answer19)
  The chemical used as a 'fixer' in photography is [LAS Prelim]
  A)
  Sodium sulphate done clear
  B)
  Sodium thiosulphate done clear
  C)
  Ammonium per sulphate done clear
  D)
  Borax done clear
  View Solution play_arrow

• question_answer20)
       

  Statement I: Coal-based thermal power stations contribute to acid-rain.

  Statement II: Oxides of carbon are emitted when coal bums. [IAS Prelim]

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

• question_answer21)
        Salts of which of the following elements provide colours to fireworks? [IAS Prelim]
  A)
  Zinc and sulphur  done clear
  B)
           Potassium and mercury done clear
  C)
  Strontium and barium done clear
  D)
  Chromium and nickel done clear
  View Solution play_arrow

• question_answer22)
       

  Statement I: Phenyl is used as a household germicide.

  Statement II: Phenyl is phenol derivative and phenol is an effective germicide. [IAS Prelim]

            
  A)
  Both Statement I and Statement II are true and Statement II is the correct explanation of Statement I done clear
  B)
  Both Statement I and Statement II are true but Statement II is NOT the correct explanation of Statement I done clear
  C)
  Statement I is true but Statement II is false done clear
  D)
  Statement I is false but Statement II is true done clear
  View Solution play_arrow

• question_answer23)
        Consider the following chemicals: [IAS Prelim]

  1. Benzene

  2. Carbon tetrachloride

  3. Sodium carbonate

  4. Trichloroethylene

  Which of the above/is are used as dry cleaning chemical?
  A)
  1 only               done clear
  B)
           2 only done clear
  C)
  1, 2 and 4 only    done clear
  D)
           1, 2, 3 and 4 done clear
  View Solution play_arrow

• question_answer24)
        Which one of the following is another name of RDX? [IAS Prelim]
  A)
  Cyanohydrin       done clear
  B)
          Dextran done clear
  C)
  Cyclohexane        done clear
  D)
           Cyclonite done clear
  View Solution play_arrow

• question_answer25)
        Which one of the following is used as an explosive? [IAS Prelim]
  A)
  Phosphorus trichloride done clear
  B)
  Mercuric oxide done clear
  C)
  Graphite             done clear
  D)
  Nitro-glycerine done clear
  View Solution play_arrow

• question_answer26)
        It is said, the Taj Mahal may be destroyed due to
  A)
  flood in Yamuna river done clear
  B)
  decomposition of marble as a result of high temperature done clear
  C)
  air pollutants released from oil refinery of Mathura done clear
  D)
  all the above done clear
  View Solution play_arrow

• question_answer27)
        \[C{{O}_{2}}\] absorbs some of the ............. that radiates from the surface of Earth to space -
  A)
  ozone               done clear
  B)
                     heat done clear
  C)
  ultraviolet light     done clear
  D)
           smog done clear
  View Solution play_arrow

• question_answer28)
        Which of the following is a measure of organic pollution of water -
  A)
  DO                   done clear
  B)
                     BOD done clear
  C)
  COD                 done clear
  D)
                     All of these done clear
  View Solution play_arrow

• question_answer29)
        Which of the following gas causes pollution -
  A)
  CO                        done clear
  B)
           \[S{{O}_{2}}\] done clear
  C)
  Both [a] and [b]   done clear
  D)
           None of the above done clear
  View Solution play_arrow

• question_answer30)
        DDT is a -
  A)
  non-biodegradable pollutant done clear
  B)
  biodegradable pollutant done clear
  C)
  antibiotics done clear
  D)
  none of the above done clear
  View Solution play_arrow

• question_answer31)
        Ozone layer in upper atmosphere (stratosphere) is destroyed by -
  A)
  hydrochloric acid done clear
  B)
  photochemical smog done clear
  C)
  chlorofluoro carbon (CFC) done clear
  D)
  sulphur dioxide done clear
  View Solution play_arrow

• question_answer32)
        Chipko movement is concerned with -
  A)
  plant conservation done clear
  B)
  project tiger done clear
  C)
  plant breeding      done clear
  D)
    animal breeding done clear
  View Solution play_arrow

• question_answer33)
        The layer which reflects radio signals back to earth is -
  A)
  Ozone layer done clear
  B)
          Troposphere done clear
  C)
  Ionosphere              done clear
  D)
  Stratosphere done clear
  View Solution play_arrow

• question_answer34)
        Which of the following is the major cause of global warming?
  A)
  Re-radiation of U.V. rays by \[C{{O}_{2}}\] and \[{{H}_{2}}O\] done clear
  B)
  Re-radiation of I.R. rays by \[C{{O}_{2}}\] and \[{{H}_{2}}O\] done clear
  C)
  Re-radiation of I.R. rays by \[{{O}_{2}}\] and \[{{N}_{2}}\] done clear
  D)
  Re-radiation of U.V. rays by \[{{O}_{2}}\] and \[{{N}_{2}}\] done clear
  View Solution play_arrow

• question_answer35)
        A green house
  A)
  is an enclosure of glass in which plants are kept to protect them from cold air outside done clear
  B)
  is that "body" which allows the short wavelength incoming solar radiation to enter in, but does not allow long wavelength outgoing infra-red radiations to escape out done clear
  C)
  both the above done clear
  D)
  none of the above done clear
  View Solution play_arrow

• question_answer36)
        Minimata disease is a pollution-related disease, which results from -
  A)
  release of human organic waste into drinking water done clear
  B)
  release of industrial waste mercury into fishing water done clear
  C)
  accumulation of arsenic into atmosphere done clear
  D)
  oil spills into sea done clear
  View Solution play_arrow

• question_answer37)
  Which of the following best describes "jet streams"?
  A)
  Wind system with seas and reversal of direction. done clear
  B)
  Wind blowing from sub-tropical high pressure belts towards the tropical low pressure belts. done clear
  C)
  Narrow meandering bands of winds which blow in mid latitude near the tropopause and encircle the globe. done clear
  D)
  Winds blowing from the tropical high pressure belts towards the equatorial low pressure belts. done clear
  View Solution play_arrow

• question_answer38)
        Which one of the following is associated with the formation of brown air in traffic congested cities? [CDS]
  A)
  Sulphur dioxide      done clear
  B)
  Nitrogen oxide done clear
  C)
  Carbon dioxide       done clear
  D)
  Carbon monoxide done clear
  View Solution play_arrow

• question_answer39)
        Some statements about the benefits of organic farming are given below. Indicate whether they are true or false using the codes given below the statements : [CDS]

  1. It reduces \[C{{O}_{2}}\] emission.

  2. It does not lead to toxic effect.

  3. It improves the water-retention capacity of the soil.

  Codes
  A)
  \[_{False}^{\,\,\,\,\,\,1}\] \[_{True}^{\,\,\,\,\,\,2}\]  \[_{False}^{\,\,\,\,\,\,3}\] done clear
  B)
  \[_{True}^{\,\,\,\,\,\,1}\] \[_{False}^{\,\,\,\,\,\,2}\] \[_{False}^{\,\,\,\,\,\,3}\]  done clear
  C)
  \[_{False}^{\,\,\,\,\,\,1}\] \[_{True}^{\,\,\,\,\,\,2}\]  \[_{True}^{\,\,\,\,\,\,3}\] done clear
  D)
  \[_{False}^{\,\,\,\,\,\,1}\] \[_{True}^{\,\,\,\,\,\,2}\]  \[_{True}^{\,\,\,\,\,\,3}\]   done clear
  View Solution play_arrow

• question_answer40)
        From which one among the following water sources, the water is likely to be contaminated with fluoride? [CDS]
  A)
  Ground water   done clear
  B)
           River water done clear
  C)
  Pond water        done clear
  D)
           Rainwater done clear
  View Solution play_arrow