InterviewSolution
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InterviewSolution
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Boron can be obtained by:A. reduction of `B_(2)O_(3)` by `C`.B. reduction of `BCl_(3)` with `H_(2)` at `1270k`.C. thermal decomposition of boron halides at `1173 k`.D. electrolytic reduction of `KBF_(4)` in `KF` at `1073 k`. |
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Answer» Correct Answer - B::C::D (B)`2BCl_(3)+3H_(2)overset(1270 K)to 2B+6HCl` ( C)`2BCl_(3)overset(1173 K)toB+3Cl_(2)` (D)`K^(+)[BF_(4)]^(-) overset(1073 K) hArr K^(+)+[BF_(4)]^(-)` `[BF_(4)]^(-) + e^(-) to B +2F_(2)` (At anode) `K^(+) + e^(-) to K` (At cathode) |
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