Chemical Reactions and Equations Q1 — Class 10 Chemistry Solution

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Chemistry Chemical Reactions and Equations CBSE Board 2025 Medium

Select from the following decomposition reactions in which the source of energy for decomposition is heat :

(i) $CaCO_{3} ⟶ CaO + CO_{2}$
(ii) $2 H_{2} O ⟶ 2 H_{2} + O_{2}$
(iii) $2 AgBr ⟶ 2 Ag + Br_{2}$
(iv) $2 FeSO_{4} ⟶ Fe_{2} O_{3} + SO_{2} + SO_{3}$

(a)(i) and (ii)
(b)(ii) and (iii)
(c)(iii) and (iv)
(d)(i) and (iv)

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