Which of the following option is incorrectA. B is purified by Van Arkel method because `BI_(3)` is volatile iodile.B. Si and Ge are purified by Zone refining method.C. Chemical reaction:`Fe_(2)O_(3)+Al to Al_(2)O_(3)+Fe` ("its an endothermic process)D. The affinity of `Cu^(2+)` towards `S^(-2)` is more than `O^(-2)`

Which of the following option is incorrectA. B is purified by Van Arke

1.	Which of the following option is incorrectA. B is purified by Van Arkel method because `BI_(3)` is volatile iodile.B. Si and Ge are purified by Zone refining method.C. Chemical reaction:`Fe_(2)O_(3)+Al to Al_(2)O_(3)+Fe` ("its an endothermic process)D. The affinity of `Cu^(2+)` towards `S^(-2)` is more than `O^(-2)`
Answer» Correct Answer - C

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