Easy
0 likes
Question
Electrolysis always involves the process of oxidation-reduction.
WBBSE
Class X
Physical Science
Electrolysis
01 Mark
2025
Answer
True.
Explanation:
Electrolysis drives chemical reactions using electrical energy, involving oxidation at the anode and reduction at the cathode.
Related Questions
More WBBSE Easy level questions
1/12
Easy
Q.
Which gas is produced at the cathode during electrolysis of acidified water?
A.
Hydrogen. Explanation: In electrolysis of acidified water with Pt electrodes, H⁺ ions...
View Question
Easy
Q.
Which acid is a weak electrolyte? (a) CH₃COOH (b) H₂SO₄ (c) HNO₃ (d) HCl
A.
(a) CH₃COOH Explanation: Electrolytes are classified as strong or weak based on...
View Question
Moderate
Q.
What happens when an iron spoon is dipped into acidified copper sulphate solution?
A.
When an iron spoon is dipped into acidified copper sulphate solution, a...
View Question
Easy
Q.
What is now used in electrical circuits instead of fuse wire?
A.
MCB / Miniature circuit breaker
View Question
Easy
Q.
What type of lens is used as a magnifying glass?
A.
Convex lens Explanation: Convex lens forms virtual, erect, magnified image for objects...
View Question
Easy
Q.
Name the greenhouse gas discharged from a refrigerator.
A.
CFC / HFC
View Question
Easy
Q.
Which layer of atmosphere is susceptible to storm and rain?
A.
Troposphere Explanation: Troposphere is the lowest layer nearest to Earth's surface, where...
View Question
Easy
Q.
Which metal is used as catalyst in Haber’s process for preparation of ammonia?
A.
The metal used as a catalyst in the Haber’s process for the...
View Question
Easy
Q.
Which one of the following is the unit of electrical energy? (a) Watt (b) Ohm...
A.
(c) Kilowatt-hour Explanation: Electrical power is defined as work done per unit...
View Question
Easy
Q.
Which type of mirror produces virtual, diminished and erect image?
A.
(c) Convex mirror Explanation: A convex mirror always forms an image which...
View Question
Easy
Q.
Which parameter remains unaltered during refraction of light?
A.
(c) Frequency Explanation: During refraction, a light ray bends because its speed...
View Question
Easy
Q.
The coefficient of thermal conduction depends on
A.
(b) property of the material of the conductor
View Question