Electrochemistry

Electrochemistry deals with

• electric energy

• chemical energy

• only a

• both a & b

Electronic conduction is due to flow of

• Protons

• Electrons

• Neutrons

• Ions

Which of the following statement is false

• flow of ions takes place in both direction

• conductivity of electrolyte is generally low

• electrolysis involves physical changes

• flow of electrons is unidirectional

A chemical species in an electrochemical reaction that LOSSES electrons undergoes _________.

• Oxidation Reaction

• Reduction Reaction

A chemical species in an electrochemical reaction that GAINS electrons undergoes _________.

• Oxidation Reaction

• Reduction Reaction

In a galvanic cell, it is an electrode where the oxidation happens?

• Cathode Electrode

• Anode Electrode

How many electrons is needed to transform Fe²⁺ ion to solid state?

• 1

• 2

• 3

• 4

Is it possible for a cell potential to have NEGATIVE sign?

• NO

• YES

True or False, is a negative sign of delta G a favorable answer that indicates spontaneity?

• TRUE

• FALSE

In the reaction of Cu(s) + Ni²⁺(aq) ---> Ni (s) + Cu²⁺(aq), the ________ undergoes oxidation reaction.

• Copper

• Nickel