Question

which of the following are combination reactions ?
(1) 2KClO3 heat = 2KCl + 3O2
(2) MgO + H2O =Mg(OH)2
(3) 4Al + 3O2 = 2Al2O3
(4) Zn + FeSO4 = Fe + ZnSO4
(a) 1 and 3
(b) 3 and 4
(c) 2 and 4
(d) 2 and 3​

Answer 1

Answer:

option d- 2 and 3

Explanation:

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