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Chemical Reactions

Borax is trea...

Question

Borax is treated with hot concentrated $H C l$ to get $N a C l$ and compound $^{'} A^{'}$ . The oxidation state of Boron in compound 'A' is:

A

+ 1

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B

+ 2

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C

+ 3

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D

- 3

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Solution

The correct option is C $+ 3$
Borax on treatment with acid gives orthoboric acid $H_{3} B O_{3}$ in which oxidation state of Boron is $+ 3$ .

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