Which of the following equations is unbalanced? - Vidyadip

MCQ

Which of the following equations is unbalanced?

A
4Fe (s) + 3O₂(g) → 2Fe₂O₃(s).
B
2Mg(s) + O₂(g) → 2MgO(s).
C
P₄(s) + O₂(g) → P₄O₁₀(s).
D
CH₄(g) + 2O₂(g) → CO2(g) + 2H₂O(g).

✓

Answer

P₄(s) + O₂(g) → P₄O₁₀(s).

Explanation:

The unbalanced equation is,

P₄(s) + O₂(g) → P₄O₁₀(s)

It can be balanced as follows:

P₄(s) + 5O₂(g) → P₄O₁₀(s)

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