Q18Multiple choice
Which of the following are combination reactions? Heat → 2KCl + 3O (i) 2KClO3 ⎯⎯⎯⎯ 2 (ii) MgO + H2O ⎯→ Mg(OH)2 (iii) 4Al + 3O2 ⎯→ 2Al2 O3 (iv) Zn + FeSO4 ⎯→ ZnSO4 + Fe
- (a)(i) and (iii)
- (b)(iii) and (iv)
- (c)(ii) and (iv)
- (d)(ii) and (iii) 4 E XEMPLAR P ROBLEMS – SCIENCE 5JQTV#PUYGT3WGUVKQPU
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(d) (ii) and (iii) 4 E XEMPLAR P ROBLEMS – SCIENCE 5JQTV#PUYGT3WGUVKQPU