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Oxidation of Alcohols

"Of the alkal...

Question

"Of the alkaline earth metals, only magnesium carbide gives $C H_{4}$ on reaction with $H_{2} O$ ."
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Solution

Of the alkaline earth metals, only beryllium carbide gives $C H_{4}$ on reaction with $H_{2} O$ .
While others like magnesium carbide gives propyne on reaction with $H_{2} O$ .
$B e_{2} C + 4 H_{2} O ⟶ 2 B e (O H)_{2} + C H_{4}$
$M g_{2} C_{3} + 4 H_{2} O ⟶ 2 M g (O H)_{2} + C_{3} H_{6}$

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