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MCQs

Total Questions : 151 | Page 5 of 16 pages
Question 41. Which of the following is not the characteristic of a reference electrode?
  1.    It must have a known output potential
  2.    It must have a constant output potential
  3.    Its output potential is dependent on the composition of the solution
  4.    It is employed in conjunction with the indicator or working electrode
 Discuss Question
Answer: Option C. -> Its output potential is dependent on the composition of the solution
Answer: (c).Its output potential is dependent on the composition of the solution
Question 42. Why is Standard hydrogen electrode called as the primary reference electrode?
  1.    It has a known output potential
  2.    It has a constant output potential
  3.    Its output potential is independent of the composition of the solution
  4.    Its output potential is zero volts
 Discuss Question
Answer: Option D. -> Its output potential is zero volts
Answer: (d).Its output potential is zero volts
Question 43. Which of the following is the simple and most convenient hydrogen electrode?
  1.    Pascal Hydrogen electrode
  2.    Bourne Hydrogen electrode
  3.    Hilderbant Hydrogen electrode
  4.    West Hydrogen electrode
 Discuss Question
Answer: Option C. -> Hilderbant Hydrogen electrode
Answer: (c).Hilderbant Hydrogen electrode
Question 44. In Hydrogen electrode, the electrode is placed in a solution of ____ M Hcl. Fill in the blank.
  1.    0.5
  2.    1
  3.    2
  4.    3
 Discuss Question
Answer: Option B. -> 1
Answer: (b).1
Question 45. Which of the following is not the disadvantage of hydrogen electrode?
  1.    Platinum can be easily poisoned
  2.    Presence of oxidising agents alters the potential
  3.    It gives a salt error
  4.    H₂ gas at 1 atmospheric pressure is difficult to set up and transport
 Discuss Question
Answer: Option C. -> It gives a salt error
Answer: (c).It gives a salt error
Question 46. Blank use compensates for the effect of temperature variation.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 47. Given below is a diagram of hydrogen electrode. Identify the unmarked component.Given Below Is A Diagram Of Hydrogen Electrode. Identify The...
  1.    Hydrogen at 1 atm
  2.    Hydrogen at 10 atm
  3.    Helium at 1 atm
  4.    Helium at 10 atm
 Discuss Question
Answer: Option A. -> Hydrogen at 1 atm
Answer: (a).Hydrogen at 1 atm
Question 48. Given below is the diagram of liquid membrane electrode. Identify the unmarked component.Given Below Is The Diagram Of Liquid Membrane Electrode. Ide...
  1.    Solid material
  2.    Semi-permeable membrane
  3.    Hydrophobic material
  4.    Water absorbing material
 Discuss Question
Answer: Option C. -> Hydrophobic material
Answer: (c).Hydrophobic material
Question 49. Given below is the diagram of glass electrode. Identify the unmarked component.Given Below Is The Diagram Of Glass Electrode. Identify The ...
  1.    Platinum leads
  2.    Silver wire coated with silver chloride
  3.    Copper wire
  4.    Platinum reference electrode
 Discuss Question
Answer: Option B. -> Silver wire coated with silver chloride
Answer: (b).Silver wire coated with silver chloride
Question 50. Given below is the block diagram of digital pH meter. Identify the unmarked component.Given Below Is The Block Diagram Of Digital PH Meter. Identi...
  1.    Filter
  2.    Buffer
  3.    A/D converter
  4.    D/A converter
 Discuss Question
Answer: Option C. -> A/D converter
Answer: (c).A/D converter

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