Chemistry
During electrolysis, what happens to metallic ions and at which electrode do they get discharged ?
P Reduction of metallic ions, cathode
Q Oxidation of metallic ions, anode
R Oxidation of metallic ions, cathode
Only P
Only Q
both P and Q
Both Q and R
Related Questions
Which statement about conduction of electricity is correct?
Electricity is conducted in an aqueous solution by electrons.
Electricity is conducted in a metal wire by ions.
Electricity is conducted in a molten electrolyte by electrons.
Electricity is conducted in an acidic solution by ions.
The oxidation reaction among the following is :
Fe3+ + 3e- ⟶ Fe
Fe2+ - e- ⟶ Fe3+
Cl2 + 2e- ⟶ 2Cl-
Cu2+ + 2e- ⟶ Cu
Assertion (A): Electrolysis establishes a relationship between electrical energy and chemical energy.
Reason (R): Substances like metals, carbon (graphite) are conductors while salts like NaCl, KCI are electrolytes.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Assertion (A): Benzene acts as non-electrolyte.
Reason (R): Benzene does not have free ions.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.