What coefficient is needed for fluorine to balance the following equation?
$L i + F_{2} \to L i F$

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Solution

The correct option is B $1$
Balance $F$ in the reaction by writing $2$ before $L i F .$ But, $L i$ is not balanced. Balance $L i$ in the reaction by writing $2$ before $L i$ . So, entire reaction is balanced.
$2 L i + F_{2} ⟶ 2 L i F$
Coefficient before $F$ is $1.$

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