Write balanced equations for the reaction of elemental boron with elemental chlorine, oxygen and nitrogen at high temperatures.

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Solution

$(i)$ The chemical reaction of boron with chlorine at a high temperature is as follows :

$2 B (s) + 3 C l_{2} (g) Δ - \to 2 B C l_{3} (g)$

Boron reacts with chlorine to form boron trichloride.

$(i i)$ The chemical reaction of boron with oxygen at a high temperature is as follows :

$4 B (s) + 3 O_{2} (g) Δ - \to 2 B_{2} O_{3} (s)$

Boron reacts with oxygen to form diboron trioxide.

$(i i i)$ The chemical reaction of boron with nitrogen at a high temperature is as follows :

$2 B (s) + N_{2} (g) Δ - \to 2 B N (s)$

Boron reacts with nitrogen to form boron nitride.

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