CBSE Class 10 – Important Questions, PYQs & Study Plan 2026

Ans: 225 − 135 = 90, 135 − 90 = 45, 90 − 45 = 45; So HCF = 45.

Ans: Favourable outcomes = 3 (2,4,6); Total = 6 ⇒ P = 3/6 = 1/2.

Ans: \(d = \sqrt{(x_2-x_1)^2 + (y_2-y_1)^2}\)

Ans: A more reactive metal displaces less reactive metal from its salt solution. Example: Zn + CuSO₄ → ZnSO₄ + Cu.

Ans: V ∝ I; V = IR. The V-I graph is a straight line.

Ans: In presence of sunlight and chlorophyll: CO₂ + H₂O → Glucose + O₂

Ans: Started 1920; purpose: boycott foreign goods, government schools, law courts; aim to fight British rule peacefully.

Ans: Gross Domestic Product: total value of goods and services produced within a country in a year.

उत्तर: कविता में प्रेरणा, परिश्रम, आशा और जीवन के संघर्ष का संदेश…