Match the extraction processes listed in column `-I` with metals listed in column`-II` and choose the correct option.
`{:("Column"-I,,"Column"-II),((a)"Self reduction method",,(p)"Aluminium from bauxite"),((b)"Carbon reduction method",,(q)"Mercury from cinnabar"),((c )"Electrolytic reduction method",,(r) "Zinc from zinc blende."),((d)"Cyanide process",,(s)"Silver from agentite"):}`

Options

A. `a-q,b-r,c-p,d-s`
B. `a-r,b-q,c-p,d-s`
C. `a-q,b-r,c-s,d-p`
D. `a-q,b-p,c-r,d-s`

Explanation

To solve the problem of matching the extraction processes with the corresponding metals, we will analyze each extraction method and identify the metal it is associated with.

### Step-by-Step Solution:

1. **Self Reduction Method**:
- This method is primarily used for extracting **mercury** from its ore, **cinnabar (HgS)**. The reaction involved is:
\[ \text{HgS} + \text{O}_2 \rightarrow \text{Hg} + \text{SO}_2 \]
- Therefore, the match for **(a) Self reduction method** is **(q) Mercury from cinnabar**.

2. **Carbon Reduction Method**:
- This method is used for extracting **zinc** from its ore, **zinc blende (ZnS)**. The reaction is:
\[ 2 \text{ZnS} + 3 \text{O}_2 \rightarrow 2 \text{ZnO} + \text{SO}_2 \]
- The zinc oxide (ZnO) is then reduced using carbon to obtain zinc. Thus, the match for **(b) Carbon reduction method** is **(r) Zinc from zinc blende**.

3. **Electrolytic Reduction Method**:
- This method is used for extracting **aluminium** from its ore, **bauxite (Al2O3)**. The electrolysis process involves:
\[ \text{Al}_2\text{O}_3 \rightarrow 2 \text{Al} + \text{O}_2 \]
- The match for **(c) Electrolytic reduction method** is **(p) Aluminium from bauxite**.

4. **Cyanide Process**:
- This process is primarily used for extracting **silver** from its ore, **argentite (Ag2S)**. The reaction is:
\[ \text{Ag}_2\text{S} + 4 \text{NaCN} \rightarrow 2 \text{NaAg(CN)}_2 + \text{Na}_2\text{S} \]
- Therefore, the match for **(d) Cyanide process** is **(s) Silver from argentite**.

### Final Matches:
- (a) Self reduction method → (q) Mercury from cinnabar
- (b) Carbon reduction method → (r) Zinc from zinc blende
- (c) Electrolytic reduction method → (p) Aluminium from bauxite
- (d) Cyanide process → (s) Silver from argentite

### Correct Option:
The correct option is:
- A → Q
- B → R
- C → P
- D → S