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11th Standard English Medium Chemistry Subject Environmental Chemistry Book Back 1 Mark Questions with Solution Part - I Question Bank Software Jun-07 , 2021

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11th Standard English Medium Chemistry Subject Environmental Chemistry Book Back 1 Mark Questions with Solution Part - I

11th Standard English Medium Chemistry Subject Environmental Chemistry Book Back 1 Mark Questions with Solution Part - I

11th Standard

    Reg.No. :
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Chemistry

Time : 00:30:00 Hrs
Total Marks : 5

    Part I

    5 x 1 = 5

  1. Which sequence for green house gases is based on GWP ?

    (a)

    CFC > N2O > CO2 > CH4

    (b)

    CFC > CO2 > N2O > CH4

    (c)

    CFC > N2O > CH4 > CO2

    (d)

    CFC > CH4 > N2O > CO2

  2. The pH of normal rain water is ________

    (a)

    6.5

    (b)

    7.5

    (c)

    5.6

    (d)

    4.6

  3. Identify the wrong statement in the following __________.

    (a)

    The clean water would have a BOD value of more than 5 ppm

    (b)

    Greenhouse effect is also called as Global warming

    (c)

    Minute solid particles in air is known as particulate pollutants

    (d)

    Biosphere is the protective blanket of gases surrounding the earth

  4. Release of oxides of nitrogen and hydrocarbons into the atmosphere by motor vehicles is prevented by using __________.

    (a)

    grit chamber

    (b)

    scrubbers

    (c)

    trickling filters

    (d)

    catalytic convertors

  5. Match the List I with List II and select the correct answer using the code given below the lists.

      List I     List II  
     A. Depletion of ozone layer     1. CO2    
     B. Acid rain  2. NO
     C. Photochemical smog  3. SO2
     D. Green house effect  4. CFC
    (a)
     A   B   C   D 
     3  4  1  2
    (b)
     A   B   C   D 
     2  1 4 3
    (c)
     A   B   C   D 
     4  3 2 1
    (d)
     A   B   C   D 
     2  4 1 3

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