Practice MCQ For Govt Pharmacist Exam, in this article we will solve, Practice MCQ on the topic electrochemical methods under the subject Pharmaceutical inorganic chemistry of first semester. Read following article for your reference.
Electrochemical Methods » PHARMACAREERS
What is the Nernst equation used for in potentiometry?
a) To relate the electrode potential to the logarithm of the activity or concentration of the analyte
b) To calculate the diffusion current
c) To calculate the resistance of the solution
d) To calculate the capacitance of the solution
Which of the following is not a type of reference electrode?
a) Standard Hydrogen Electrode (SHE)
b) Saturated Calomel Electrode (SCE)
c) Silver-Silver Chloride Electrode (Ag/AgCl)
d) Dropping Mercury Electrode (DME)
In conductometry, what happens to the conductivity of a solution as the concentration of the electrolyte increases?
a) The conductivity decreases
b) The conductivity increases
c) The conductivity remains the same
d) The conductivity first increases, then decreases
In polarography, what is the purpose of the dropping mercury electrode?
a) To provide a constant potential
b) To provide a constant current
c) To provide a renewable surface for the electrochemical reaction
d) To provide a constant resistance
What is the Ilkovic equation used for in polarography?
a) To relate the diffusion current to the concentration of the analyte
b) To calculate the potential difference
c) To calculate the resistance of the solution
d) To calculate the capacitance of the solution
In a potentiometric titration, what happens at the equivalence point?
a) The potential difference is at its maximum
b) The potential difference is at its minimum
c) The potential difference is zero
d) The potential difference is constant
In a conductometric titration, what happens at the equivalence point?
a) The conductivity is at its maximum
b) The conductivity is at its minimum
c) The conductivity is zero
d) The conductivity is constant
In a polarographic titration, what happens at the equivalence point?
a) The current is at its maximum
b) The current is at its minimum
c) The current is zero
d) The current is constant
Which of the following is not a type of indicator electrode?
a) Glass electrode
b) Platinum electrode
c) Calomel electrode
d) Silver electrode
Which of the following is not a type of working electrode?
a) Dropping Mercury Electrode (DME)
b) Rotating Platinum Electrode (RPE)
c) Standard Hydrogen Electrode (SHE)
d) Silver-Silver Chloride Electrode (Ag/AgCl)
Sure, here are 20 more challenging multiple-choice questions (MCQs) on electrochemical methods including conductometry, potentiometry, and polarography:
Which of the following is not a type of potentiometric electrode?
a) Glass electrode
b) Calomel electrode
c) Platinum electrode
d) Dropping Mercury Electrode (DME)
In a potentiometric titration, what happens to the potential difference as the reaction proceeds?
a) It increases
b) It decreases
c) It remains constant
d) It first increases, then decreases
What is the main advantage of conductometry over other electrochemical methods?
a) It can measure potential difference
b) It can measure resistance
c) It can measure conductivity
d) It can measure capacitance
In a conductometric titration, what happens to the conductivity as the reaction proceeds?
a) It increases
b) It decreases
c) It remains constant
d) It first increases, then decreases
Which of the following is not a type of polarographic electrode?
a) Dropping Mercury Electrode (DME)
b) Rotating Platinum Electrode (RPE)
c) Calomel electrode
d) Glass electrode
In a polarographic titration, what happens to the current as the reaction proceeds?
a) It increases
b) It decreases
c) It remains constant
d) It first increases, then decreases
Which of the following is not a type of reference electrode?
a) Standard Hydrogen Electrode (SHE)
b) Saturated Calomel Electrode (SCE)
c) Silver-Silver Chloride Electrode (Ag/AgCl)
d) Dropping Mercury Electrode (DME)
Which of the following is not a type of indicator electrode?
a) Glass electrode
b) Platinum electrode
c) Calomel electrode
d) Dropping Mercury Electrode (DME)
Which of the following is not a type of working electrode?
a) Dropping Mercury Electrode (DME)
b) Rotating Platinum Electrode (RPE)
c) Calomel electrode
d) Glass electrode
Which of the following is not a type of counter electrode?
a) Dropping Mercury Electrode (DME)
b) Rotating Platinum Electrode (RPE)
c) Calomel electrode
d) Glass electrode
Which of the following is not a type of non-polarizable electrode?
a) Dropping Mercury Electrode (DME)
b) Rotating Platinum Electrode (RPE)
c) Calomel electrode
d) Glass electrode
Which of the following is not a type of polarizable electrode?
a) Dropping Mercury Electrode (DME)
b) Rotating Platinum Electrode (RPE)
c) Calomel electrode
d) Glass electrode
Which of the following is not a type of reversible electrode?
a) Dropping Mercury Electrode (DME)
b) Rotating Platinum Electrode (RPE)
c) Calomel electrode
d) Glass electrode
Which of the following is not a type of irreversible electrode?
a) Dropping Mercury Electrode (DME)
b) Rotating Platinum Electrode (RPE)
c) Calomel electrode
d) Glass electrode
Which of the following is not a type of half-cell?
a) Dropping Mercury Electrode (DME)
b) Rotating Platinum Electrode (RPE)
c) Calomel electrode
d) Glass electrode
Which of the following is not a type of full-cell?
a) Dropping Mercury Electrode (DME)
b) Rotating Platinum Electrode (RPE)
c) Calomel electrode
d) Glass electrode
Which of the following is not a type of galvanic cell?
a) Dropping Mercury Electrode (DME)
b) Rotating Platinum Electrode (RPE)
c) Calomel electrode
d) Glass electrode
Which of the following is not a type of electrolytic cell?
a) Dropping Mercury Electrode (DME)
b) Rotating Platinum Electrode (RPE)
c) Calomel electrode
d) Glass electrode
Which of the following is not a type of voltaic cell?
a) Dropping Mercury Electrode (DME)
b) Rotating Platinum Electrode (RPE)
c) Calomel electrode
d) Glass electrode
Which of the following is not a type of electrochemical cell?
a) Dropping Mercury Electrode (DME)
b) Rotating Platinum Electrode (RPE)
c) Calomel electrode
d) Glass electrode
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