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Reactivity with Air and Water (Group 2)

In the given ...

Question

In the given chemical reactions, identify ‘X’ and ‘Y’:

$M g + O_{2} \to X$

$X + H_{2} O \to Y$

A

X - M g O_{2}, Y - M g (O H)_{3}

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B

X - M g O, Y - M g (O H)_{2}

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C

X - M g (O H)_{2}, Y - M g O

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D

X - M g O_{2}, Y - M g H_{2}

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Solution

The correct option is B $X - M g O, Y - M g (O H)_{2}$
$M g + O_{2} ⟶ M g O [X]$
$M g O [X] + H_{2} O ⟶ M g (O H)_{2} [Y]$

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