🧪
Class 11 Chemistry — Chapter 7: Redox Reactions
90 practice questions · 30 Easy · 30 Medium · 30 Hard
Free NCERT-aligned multiple-choice practice for Class 11 Chemistry, Chapter 7 (Redox Reactions). 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 90.
Sample questions
Q1Easy
Oxidation state of Ca in CaO:
A.+2✓ correct
B.+1
C.0
D.−2
Why
Group 2 metal — always +2.
Q2Medium
Oxidation number of S in H₂SO₄:
A.+6✓ correct
B.−2
C.+4
D.0
Why
2(+1) + S + 4(−2) = 0 ⇒ S = +6.
Q3Hard
Disproportionation reaction:
A.Same element is both oxidised and reduced✓ correct
B.Two different elements oxidised
C.No redox
D.Pure precipitation
Why
e.g., 2H₂O₂ → 2H₂O + O₂.
Practise all 90 questions free
Timed quizzes, instant scoring, streaks and XP. Sign in with Google — no card needed.
Start this chapter free →