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Class 8 Science — Chapter 11: Chemical Effects of Electric Current
6 practice questions · 2 Easy · 2 Medium · 2 Hard
Free NCERT-aligned multiple-choice practice for Class 8 Science, Chapter 11 (Chemical Effects of Electric Current). Practise timed Easy, Medium and Hard quizzes with instant explanations — built for CBSE Board exams, JEE Main and NEET UG. Here are a few sample questions; sign in free to practise all 6.
Sample questions
Q1Easy
Most liquids conduct electricity due to:
A.Ions in solution✓ correct
B.Photons
C.Sound
D.Heat
Why
Charge carriers.
Q2Medium
Electrolysis of water gives:
A.Hydrogen and Oxygen✓ correct
B.Salt
C.Sugar
D.Carbon
Why
2 H₂O → 2 H₂ + O₂.
Q3Hard
Electroplating is used to:
A.Prevent corrosion and improve appearance✓ correct
B.Cool metals
C.Heat them
D.Soften them
Why
Cars, jewellery, utensils.
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