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Matching the imformation given in the th...

Matching the imformation given in the three columns of the following table.
`{:("Column 1","Column 2","Column 3"),("(Reaction)","(Process)","Ores(Reactant)"),((I)PbS rarr PbO,(i) "Roasting","(P) Zinc blende (ZnS)"),((II)CaCO_(3) rarr CaO,(ii)"Calcination","(Q) Galna (PbS)"),((III) ZnS rarr Zn,(iii) "Carbon reduction","(R) Pyrit"),((IV) CuFeS_(2) rarr Ca,(iv) "Salt reduction",(S) "Limestone"):}`
Which of the following option is correct ?

A

(I) (i) (Q)

B

(I) (ii) (S)

C

(I) (iii) (P)

D

(IV) (iv) (Q)

Text Solution

AI Generated Solution

The correct Answer is:
To solve the matching question, we need to analyze each reaction, identify the corresponding process, and then match it with the correct ore. Let's go through each reaction step by step. ### Step 1: Analyze Reaction I **Reaction:** PbS → PbO **Process:** Roasting **Ore:** Galena (PbS) **Explanation:** The conversion of lead sulfide (PbS) to lead oxide (PbO) occurs in the presence of oxygen, which is characteristic of the roasting process. Galena is the ore from which lead is extracted. ### Step 2: Analyze Reaction II **Reaction:** CaCO3 → CaO **Process:** Calcination **Ore:** Limestone (CaCO3) **Explanation:** The thermal decomposition of calcium carbonate (CaCO3) to calcium oxide (CaO) occurs when heated, which is known as calcination. Limestone is the ore from which calcium oxide is derived. ### Step 3: Analyze Reaction III **Reaction:** ZnS → Zn **Process:** Carbon Reduction **Ore:** Zinc Blende (ZnS) **Explanation:** The reduction of zinc sulfide (ZnS) to zinc (Zn) typically involves the use of carbon as a reducing agent. This process is known as carbon reduction, and zinc blende is the ore from which zinc is extracted. ### Step 4: Analyze Reaction IV **Reaction:** CuFeS2 → Cu **Process:** Salt Reduction **Ore:** Pyrite (CuFeS2) **Explanation:** The conversion of copper iron sulfide (CuFeS2) to copper (Cu) can involve a process known as salt reduction, where the ore is pyrite. ### Summary of Matches 1. **Reaction I:** PbS → PbO (Roasting) matches with Galena (Q) 2. **Reaction II:** CaCO3 → CaO (Calcination) matches with Limestone (S) 3. **Reaction III:** ZnS → Zn (Carbon Reduction) matches with Zinc Blende (P) 4. **Reaction IV:** CuFeS2 → Cu (Salt Reduction) matches with Pyrite (R) ### Final Matches - (I) PbS → PbO → Roasting → Galena (Q) - (II) CaCO3 → CaO → Calcination → Limestone (S) - (III) ZnS → Zn → Carbon Reduction → Zinc Blende (P) - (IV) CuFeS2 → Cu → Salt Reduction → Pyrite (R) ### Correct Option The correct option based on the matches is **A**.
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