NTA Abhyas 2020

Exam: NTA Abhyas
Year: 2020
Subject: Chemistry
Chapter: General Principles and Processes of Isolation of Metals

NTA Abhyas 2020 · Chemistry · General Principles and Processes of Isolation of Metals

Which of the following explain the poling process?

Options

AReduction of metallic oxide impurities to metal by $Al$
BReduction of metallic oxide impurities to metal by gaseous hydrocarbon
CElectrolytic reduction of metallic oxide to metal
DRemoval of volatile oxides from the molten metal

Correct answer

B. Reduction of metallic oxide impurities to metal by gaseous hydrocarbon

Step-by-step solution

In poling process molten impure metal is stirred with green wood. Green wood releases hydrocarbon gases which reduced the impurities of metal oxides to metal.

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