Class 12ChemistryGeneral Principles and Processes of Isolation of ElementsMix Examples of General Principles and processes of Isolation of Elements
MediumIn the wrought iron of the iron pillar located in Delhi,what other elements are present besides iron?
- A$0.15 \% C, 0.05 \% Si, 0.05 \% Mn, 0.25 \% P, 0.005 \% Ni, 0.03 \% Cu, 0.02 \% N$
- B$0.20 \% C, 0.10 \% Si, 0.02 \% Mn, 0.15 \% P, 0.01 \% Ni, 0.05 \% Cu, 0.01 \% N$
- C$0.10 \% C, 0.02 \% Si, 0.08 \% Mn, 0.30 \% P, 0.002 \% Ni, 0.02 \% Cu, 0.05 \% N$
- D$0.05 \% C, 0.15 \% Si, 0.01 \% Mn, 0.10 \% P, 0.008 \% Ni, 0.01 \% Cu, 0.03 \% N$
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$(i)$ In Goldschmidt thermite process,aluminium acts as a reducing agent.
$(ii)$ $Mg$ is extracted by electrolysis of aqueous solution of $MgCl_2$.
$(iii)$ Extraction of $Pb$ is possible by carbon reduction method.
$(iv)$ Red Bauxite is purified by Serpeck's process.
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