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Total Questions : 151 | Page 8 of 16 pages
Question 71. If the differential amplifier gives a negative output then it infers which of the following (Reference output is given to the positive terminal and sample output is given to the negative terminal)?
  1.    The concentration of silica in sample and reference solution is equal
  2.    The concentration of silica in a reference solution is more than that in the sample solution
  3.    The concentration of silica in sample solution is more than that in the reference solution
  4.    Further processing is required to come to any conclusion
 Discuss Question
Answer: Option B. -> The concentration of silica in a reference solution is more than that in the sample solution
Answer: (b).The concentration of silica in a reference solution is more than that in the sample solution
Question 72. During the first sequence of the process, sample is added at the last.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 73. What will be the final colour of the solution obtained during silica analysis?
  1.    Pink
  2.    Red
  3.    Blue
  4.    Yellow
 Discuss Question
Answer: Option C. -> Blue
Answer: (c).Blue
Question 74. How will the photodetector output be if silica content is high in a solution?
  1.    The output will be high
  2.    The output will be low
  3.    The output will be zero
  4.    Output cannot be determined
 Discuss Question
Answer: Option B. -> The output will be low
Answer: (b).The output will be low
Question 75. Which of the following statements are true?
  1.    More light is absorbed if the silica content is high in a solution
  2.    More light is transmitted if the silica content is high in a solution
  3.    Less light is absorbed if the silica content is high in a solution
  4.    More light is absorbed if the silica content is low in a solution
 Discuss Question
Answer: Option A. -> More light is absorbed if the silica content is high in a solution
Answer: (a).More light is absorbed if the silica content is high in a solution
Question 76. Hydrogen electrode which is the reference electrode can be used as which of the following?
  1.    Anode only
  2.    Cathode only
  3.    Anode or Cathode
  4.    Salt bridge
 Discuss Question
Answer: Option C. -> Anode or Cathode
Answer: (c).Anode or Cathode
Question 77. If hydrogen electrode acts as cathode, hydrogen is reduced.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 78. The composition of glass membrane in glass electrode cannot have which of the following?
  1.    Sodium silicate
  2.    Calcium silicate
  3.    Lithium silicate
  4.    Barium silicate
 Discuss Question
Answer: Option D. -> Barium silicate
Answer: (d).Barium silicate
Question 79. Which of the following cannot form the inner reference electrode in glass electrodes?
  1.    Silver electrode
  2.    Copper electrode
  3.    Calomel electrode
  4.    Silver chloride electrode
 Discuss Question
Answer: Option B. -> Copper electrode
Answer: (b).Copper electrode
Question 80. Which of the following is the purpose of added membranes in the glass membrane of the glass electrode?
  1.    They act as tightners
  2.    They act as filters
  3.    They act as conditioners
  4.    They act as collectors
 Discuss Question
Answer: Option A. -> They act as tightners
Answer: (a).They act as tightners

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