Metals react with water to form oxides or hydroxides and

Hydrogen

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Oxygen

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Carbon dioxide

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Carbon monoxide

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Solution

The correct option is C Hydrogen
Metals react with water to form metal oxides or metal hydroxide (froming an alkaline solution) and hydrogen gas.
$2 N a + 2 H_{2} O ⟶ 2 N a O H + H_{2}$
$2 K + H_{2} O ⟶ 2 K O H + H_{2}$
$C a + H_{2} O ⟶ C a (O H)_{2} + H_{2}$
$2 A l + 3 H_{2} O ⟶ A l_{2} O_{3} + H_{2}$
$3 F e + 4 H_{2} O ⟶ F e_{2} O_{3} + 4 H_{2}$
Magnesium requires the water to be in the form of steam for a clearly observable reaction to take place.

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When do metals form there oxide or hydroxide when reacted with water?

When metal oxides or metal hydroxides react with ___, they form salt and water.

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