Analytical Chemistry Quiz

What is the principle of coulometric method of analysis governed by?

• Faraday’s laws of electrolysis

• Charles's Law

• Avogadro's Law

• Boyle's Law

What is the practical unit for quantity of electricity?

• Volt

• Coulomb

• Ohm

• Ampere

Which law states that the mass of a substance liberated at the electrodes during electrolysis is directly proportional to the quantity of electrical charge that passed through the electrolyte?

• Newton's Law

• Einstein's Theory of Relativity

• Bohr's Atomic Model

• Faraday’s First Law of Electrolysis

What is the charge on one mole of electrons known as?

• Faraday

• Boltzmann Constant

• Avogadro's Number

• Planck's Constant

Which type of coulometric method maintains the potential of the working electrode at a constant level?

• Controlled-Potential Coulometry

• Constant Potential Electrolysis

• Constant Current Electrolysis

• Controlled-Current Coulometry

What is the product of the resistance R of a cell in ohms and the current, I in amperes called?

• Polarisation Effect

• Electrolytic Potential

• IR Drop

• Ohmic Resistance

Which method is more sensitive, rapid, and accurate - Electrogravimetry or Potentiometry?

• Both are equally sensitive

• Electrogravimetry

• Potentiometry

• Neither is sensitive

What is the name of the method where the product is weighed as a deposit on one of the electrodes?

• Electrogravimetry

• Coulometry

• Voltammetry

• Potentiometry

What is the name of the method where the quantity of electricity needed to complete the electrolysis is measured as coulombs?

• Potentiometry

• Electrogravimetry

• Coulometry

• Voltammetry

Which type of electrolysis is carried out by keeping the current constant?

• Controlled-Potential Coulometry

• Constant Current Electrolysis

• Controlled-Current Coulometry

• Constant Potential Electrolysis