Multiple Choice

The process involving the release or loss of electron by an atom, ion or molecule is called _____.

• oxidation
• ionization
• reduction

The substance which gain electrons and get reduced are called _____.

• reductant

• oxidant

• reducing agent

Free energy change is denoted by the symbol of _____.

• E

• ΔG⁰

• ΔG

_____ indicates the phase boundary, or interface at which a potential develops.

• A single vertical line

• Double vertical line

• Triple vertical line

The relationship between standard free energy and equilibrium constant can be represented as _____.

• G = -RT Ln K

• ΔG⁰ = -RT Ln K

• G = - nFE

Standard electrode potential is denoted by the symbol of _____.

• E⁰

• E

• G

When the half cell of interest behaves spontaneously as a cathode, it is the _____.

• negative electrode

• positive electrode of the galvanic cell

• neutral electrode

_____ is dependent of moles of reactant and product.

• The standard free energy change

• Free energy change

• Standard electrode potential

The formal potential of the iron (III) - iron (II) couple is _____ in 1F hydrochloric acid.

• 0.70 V

• 0.80 V

• 0.90 V

There are _____ difficulties encountered in the use of saturated potential for the cell.

• two

• three

• four