When Mg reacts with dilute $H_{2} S O_{4}$ , which gas is released?

H_{2}

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O_{2}

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H_{2} S

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H_{2} O

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Solution

The correct option is A $H_{2}$
$H_{2}$ gas is released when a metal is reacted with dilute $H_{2} S O_{4}$ . The gas burns with a pop sound when brought near a burning splint.
$M g + H_{2} S O_{4} \to M g S O_{4} + H_{2}$

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When Mg reacts with dilute H2SO4, which gas is released?

The correct option is A H2H2 gas is released when a metal is reacted with dilute H2SO4. The gas burns with a pop sound when brought near a burning splint.Mg+H2SO4→MgSO4+H2

When Mg reacts with dilute $H_{2} S O_{4}$ , which gas is released?

The correct option is A $H_{2}$
$H_{2}$ gas is released when a metal is reacted with dilute $H_{2} S O_{4}$ . The gas burns with a pop sound when brought near a burning splint.
$M g + H_{2} S O_{4} \to M g S O_{4} + H_{2}$