A) \[2Al+3{{H}_{2}}S{{O}_{4}}\to A{{l}_{2}}{{(S{{O}_{4}})}_{3}}+3{{H}_{2}}\]
B) \[2AlC{{l}_{3}}+3Ca{{(OH)}_{2}}\to 2Al{{(OH)}_{3}}+3CaC{{l}_{2}}\]
C) \[2KCl{{O}_{3}}\to 2KCl+3{{O}_{2}}\]
D) \[Mg+{{H}_{2}}O\to Mg{{(OH)}_{2}}+{{H}_{2}}\]
Correct Answer: D
Solution :
The balanced equation is: \[Mg+2{{H}_{2}}O\to Mg{{(OH)}_{2}}+{{H}_{2}}\]
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