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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Similar Questions
List-$I$ shows reactions involved in the metallurgy of $Pb$ (lead) and List-$II$ shows the names of the processes. Match List-$I$ with List-$II$ and select the correct code for your answer.
List-$I$ List-$II$ $(P) \ PbS + 2PbO \xrightarrow{\Delta} 3Pb + SO_2 \uparrow$ $(1) \ \text{Smelting}$ $(Q) \ PbS + \frac{3}{2}O_2 \xrightarrow{\Delta} PbO + SO_2 \uparrow$ $(2) \ \text{Self reduction}$ $(R) \ PbCO_3 \xrightarrow{\Delta} PbO + CO_2 \uparrow$ $(3) \ \text{Calcination}$ $(S) \ PbO + C \xrightarrow{\Delta} Pb + CO \uparrow$ $(4) \ \text{Roasting}$
| List-$I$ | List-$II$ |
| $(P) \ PbS + 2PbO \xrightarrow{\Delta} 3Pb + SO_2 \uparrow$ | $(1) \ \text{Smelting}$ |
| $(Q) \ PbS + \frac{3}{2}O_2 \xrightarrow{\Delta} PbO + SO_2 \uparrow$ | $(2) \ \text{Self reduction}$ |
| $(R) \ PbCO_3 \xrightarrow{\Delta} PbO + CO_2 \uparrow$ | $(3) \ \text{Calcination}$ |
| $(S) \ PbO + C \xrightarrow{\Delta} Pb + CO \uparrow$ | $(4) \ \text{Roasting}$ |
Medium
View SolutionTo obtain steel entirely free from sulphur and phosphorus,the process used is
Medium
View SolutionThe electrochemical extraction of aluminum from bauxite ore involves:
Match List-$I$ with List-$II$ and select the correct answer using the codes given below the list.
List-$I$ List-$II$ $1. Ti$ $A. \text{Bauxite}$ $2. Si$ $B. \text{Cerussite}$ $3. Al$ $C. \text{Van-Arkel method}$ $4. Pb$ $D. \text{Zone refining}$
| List-$I$ | List-$II$ |
|---|---|
| $1. Ti$ | $A. \text{Bauxite}$ |
| $2. Si$ | $B. \text{Cerussite}$ |
| $3. Al$ | $C. \text{Van-Arkel method}$ |
| $4. Pb$ | $D. \text{Zone refining}$ |
MediumAIIMS 2015
View SolutionWhich of the following statements is wrong?
Easy
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