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Which of the following reaction is wrong?

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Which of the following reaction is wrong?

(a) Na+H →NaH

(b) 2B5H9  →B10H14 + 2H2

(c) 3CH3OH + H3BO3  →B(OCH3)3 + 3H2O

(d) 3NaBH4 + BI3 →2B2H6 + 3NaI

The question was asked in an international level competition.

The above asked question is from Inorganic Chemical in division Inorganic Chemical Industries of Chemical Technology

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Best answer
The correct choice is (d) 3NaBH4 + BI3 →2B2H6 + 3NaI

Easiest explanation: 3NaBH4 + BI3  →2B2 H6 + 3NaI is wrong because sodium borohydride can react only with boron tri fluoride or boron tri chloride but not with boron tri iodide or boron tri bromide.

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