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Chemical Properties of Boron Family

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Question

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Both ${B F}_{3}$ and $B {C l}_{3}$ are colourless but they become coloured on exposure to light due to liberation of free halogens due to photolysis.

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Solution

Both ${B F}_{3}$ and $B {C l}_{3}$ are colorless but they become colored on exposure to light due to liberation of free halogens due to photolysis.

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