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| 1. |
Which one of the following metals can not be extracted by using Al as a reducing agent ? (a) W from WO3 (b) Mn from Mn3O4 (c) Cr from Cr2O3 (d) Na from Na2O |
| Answer» <p style="text-align: justify;"><span style="color:#000000"><span style="font-family:Arial,Helvetica,sans-serif"><strong>Correct option (d) Na from Na<sub>2</sub>O</strong></span></span></p><p style="text-align: justify;"><span style="color:#000000"><span style="font-family:Arial,Helvetica,sans-serif"><strong>Explanation:</strong></span></span></p><p style="text-align: justify;"><span style="color:#000000"><span style="font-family:Arial,Helvetica,sans-serif">Sodium metal can not be extracted by using Al as reducing agent because Na is more electropositive than aluminium.</span></span></p> | |