Potentiometry

Potentiometer is used to measure

• Absorbance

• Emission

• Cell potential

• Conductance

The electrodes used in potentiometry

• Reference electrode

• Indicator electrode

• Record electrode

• None of the above

In potentiometric measurement the potential of the reference electrode

• keeps changing with conc of ions

• decreases

• remains constant

• increases

In potentiometric measurement, any change in cell potential is due to a change in the potential of the Indicator electrode during the titration

• True

• False

In acid-base potentiometric titrations, the indicator electrode used is

• Calomel electrode

• Hydrogen sensitive - glass electrode

• Silver-silver chloride electrode

• Metal-metal salt electrode

In FAS vs Potassium dichromate titration, At the equivalence point all the Fe2+ ions are converted to Fe3+ ions and the ______________redox electrode that ceases to exist.

• Pt / Fe3+, Fe2+

• Pt / Cr2O72-, Cr3+

• None of the above

In potentiometric redox titration, the plot to find out equivalence point will have _____________on the Y axis

• ∆E / ∆V

• ∆E

• ∆V

• Volume to titrant