Common Chemical Industries in Pakistan and Environmental Chemistry MCQs 3

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MCQ's with answers from chapter 15 and Chapter 16 Common Chemical Industries in Pakistan and Environmental Chemistry, chemistry book 1 for FSC pre engineering and pre medical for Board of Intermediate and Secondary education. Also For Entry Test Preparation for UET, NUST, PIEAS, GIKI, AIR, FAST, WAH University, UHS, other engineering Universities and Medical Colleges.


  1. Prilling of fertilizer increases its
    1. Solubility
    2. Stability
    3. Spreading power
    4. absorption
  2. Which combination was first used as cement by Joseph Aspadin
    1. Clay and sand
    2. Limestone and sand
    3. Lime stone and clay
    4. Soap stone and clay
  3. The first paper was prepared by using Bark of
    1. Mulberry tree
    2. Bamboo
    3. Pine apple
    4. Raspberry tree
  4. Which of the there elements are largely needed for normal growth of crops
    1. N,P,K
    2. N,P,C
    3. H,P,S
    4. N,C,Mg
  5. Which of the following is not micronutrient
    1. Fe
    2. Cu
    3. H
    4. Mn
  6. Which is not argillaceous material
    1. Lime stone
    2. Clay
    3. Slate
    4. shale
  7. The percentage of nitrogen in NH3 is
    1. 82%
    2. 46%
    3. 16%
    4. 15%
  8. For which crops NH4NO3 is not useful
    1. Wheat
    2. Paddy rice
    3. Cotton
    4. Sugar cane
  9. Which of the process is alkaline
    1. Sulphite process
    2. Kraft process
    3. Neutral sulphite semi chemical process
    4. none
  10. Which of the following makes paper brittle
    1. Lignin
    2. Dust particles
    3. Sand particles
    4. Lump of clay
  11. Which fertilizer is widely used in Pakistan
    1. Ca(H2PO4)2
    2. KNO3
    3. (NH2)2 CO
    4. (NH4)2HPO4
  12. Which of the following fertilizer contains 75% plant nutrients
    1. Urea
    2. DAP
    3. Super phosphate
    4. NH4NO3
  13. Which of the following paper bleaching agents is largely used in Pakistan
    1. Cl2
    2. O3
    3. O2
    4. ClO2
  14. Which of the following air pollutants is quiet killer
    1. NO2
    2. CO2
    3. CO
    4. NO
  15. Which method is used to remove permanent hardness of water
    1. Ion exchange method
    2. Coagulation
    3. Aeration
    4. Chlorination

  1. Spreading power
  2. Lime stone and clay
  3. Mulberry tree
  4. N,P,K
  5. H
  6. Lime stone
  7. 82%
  8. Paddy rice
  9. Kraft process
  10. Lignin
  11. (NH2)2 CO
  12. DAP
  13. CLO2
  14. CO
  15. Ion exchange method

I am Mechatronics and Control Engineer from UET, Lahore. Helping Engineering students gives me pleasure.

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