Question # 1

The cathodic reaction in the electrolysis of dill H₂SO₄with Pt electrodes

Choose an answer

Reduction

Oxidation

Both oxidation and reduction

neither oxidation or reduction

Which of the following statements is true about Galvanic cell

Choose an answer

Anode is negatively charged

Reduction occurs at anode

Cathode is positively charge

Reduction occurs at cathode

The standard EMF of Daniel cell is 1.10 volt. The maximum electrical work obtained from the Daniel cell is

Choose an answer

212.3 kJ

175.4 kJ

106.15 kJ

53.07 kJ

In an electrolytic cell, the electrons flow from :

Choose an answer

Cathode to anode or opposite

Cathode to anode

Anode to cathode

Random flow

Corrosion is basically a

Choose an answer

Altered reaction in presence of H₂O

Electrochemical phenomenon

Interaction

Union between two light metals and a heavy metal

The standard e.m.f. of a galvanic cell involving cell reaction with n = 2 is found to be 0.2965 V at 25°C. The equilibrium constant of the reaction would be

Choose an answer

1.0 x 10¹⁰

2.0 x 10¹¹

4.0 x 10¹²

1.0 x 10²

Choose an answer

A strong reducing agent

A strong oxidising agent

Better oxidising agent than hydrogen

Less reducing agent than hydrogen

The galvanic or voltaic cells which are rechargeable called as

Choose an answer

Primary cells

Secondary cells

Dry cells

Infinite cells

Which of the following is the use of electrolysis?

Choose an answer

Eletrorefining

Electroplating

Both A and B

None of the above

An electrochemical cell is based upon

Choose an answer

Acid-base reaction

Redox reaction

Nuclear reaction

None of the above

The value of SHE is cathode and anode is always taken to be

Choose an answer

One

Zero

Different

Same

Purification of an impure copper is made by electrolytic cell, in which impure copper is anode and pure copper is cathode, and the electrolyte used is

Choose an answer

H₂SO₄

CuSO₄

ZnSO₄

Na₂SO₄

Cell in which an electric current drives a non-spontaneous reaction is called

Choose an answer

Electrolytic cell

Voltaic cell

Biological cell

Electrochemical cell

More Classes

Other Links

ECAT Chemistry Chapter 10 Electrochemistry Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer