Choose the chemical equation for the reaction of Magnesium metal with Hydrochloric Acid.

M g (s) + 2 H C l (a q) - - > M g C l_{2} (a q) + H_{2} (g)

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M g (s) + H C l (a q) - - > M g C l_{2} (a q) + H (g)

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M g (s) + 2 H C l (a q) - - > M g C l (a q) + H_{2} (g)

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M g (s) + 2 H C l (a q) - - > 2 M g C l (a q) + H_{2} (g)

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Solution

The correct option is A $M g (s) + 2 H C l (a q) - - > M g C l_{2} (a q) + H_{2} (g)$
As magnesium is more reactive than hydrogen, it easily displaces hydrogen from hydrochloric acid.
$M g (s) + 2 H C l (a q) - - > M g C l_{2} (a q) + H_{2} (g)$

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M g O (s) + 2 H C l (a q) \to M g C l_{2} (a q) + H_{2} O (l)

M g (s) + 2 H C l (a q) \to M g {C l}_{2} (a q) + H_{2} (g)

H_{2} (g)

M g (s) + 2 H C l (a q) \to M g C l_{2} (a q) + H_{2} (g)

6 g

H C l

5 g

M g

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