What would be the stoichiometric coefficient of hydrochloric acid in the following equation?
__ ${C l}_{2} +$ __ $H_{2} O \to$ $H C l +$ $H C l O_{3}$

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Solution

The correct option is B 5
The balanced chemical equation can be represented as:

$3 C l_{2} + 3 H_{2} O \to 5 H C l + H C l O_{3}$

Hence, the coefficient of $H C l$ in the equation is 5

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