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Prem chand
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Asked: 2021-12-14T07:25:50+00:00 In:

Which of the following are combination reactions?

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Poll Results

0%[A] (i) and (iii)
0%[B] (iii) and (iv)
33.33%[C] (ii) and (iv) ( 1 voter )
66.67%[D] (ii) and (iii) ( 2 voters )
Based On 3 Votes

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(i) 2KClO₃ + Heat → 2KCl + 3O₂
(ii) MgO + H₂O → Mg (OH)₂
(iii) 4Al + 3O₂ → 2Al₂O₃
(iv) Zn + FeSO₄ → ZnSO₄ + Fe

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    1. Best Answer

      [D] (ii) and (iii)
      Combination reaction is a reaction in which two or more reactants react together to form a single product. In reaction (ii) MgO and H₂O combine to form Mg(OH)₂ and in reaction (iii), Al and O₂ combine to form 2Al₂O₃.

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