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JEE Main Chemistry question

ChemistryThe p-Block ElementsJEE Main

Consider the following three reactions: Out of the seven products formed (A, B, C, D, E, F, G), how many contain boron atom(s)?

Answer: 3

Solution

Reaction 1: 4BF_3 + 3LiAlH_4 \rightarrow 2B_2H_6 + 3LiF + 3AlF_3, so — only contains boron. Reaction 2: , so — only contains boron. Reaction 3

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Question ID VK-138947