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MCQs

Total Questions : 104 | Page 11 of 11 pages
Question 101. Which of the following statement is wrong regarding permanent hardness?
  1.    It is also called carbonate hardness
  2.    It is due to the presence of sulfates, chlorides and nitrates of calcium and magnesium
  3.    It cannot be removed by boiling
  4.    It requires special methods of water softening to get removed
 Discuss Question
Answer: Option A. -> It is also called carbonate hardness
Answer: (a).It is also called carbonate hardness
Question 102. When depth of insertion of turbidity rod increases, the reading in the turbidity rod ___
  1.    Decreases
  2.    Increases
  3.    First decrease, then increase
  4.    Remains constant
 Discuss Question
Answer: Option A. -> Decreases
Answer: (a).Decreases
Question 103. Carbonate hardness can be removed by adding lime to water.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 104. Chlorides are estimated by titration with a standard silver nitrate solution by using _______ as an indicator.
  1.    Potassium manganate
  2.    Potassium chloride
  3.    Potassium chromate
  4.    Potassium dichromate
 Discuss Question
Answer: Option C. -> Potassium chromate
Answer: (c).Potassium chromate

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