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| 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-$II$ |
| $(P). [M(CN)_2]^-$ | $(1). Ni$ (ધાતુના શુદ્ધિકરણ દરમિયાન) |
| $(Q). [M(CO)_4]$ | $(2). Ti$ (ધાતુના શુદ્ધિકરણ દરમિયાન) |
| $(R). MI_4$ | $(3). Pb$ (અયસ્કના ભૂંજન દરમિયાન) |
| $(S). MO$ | $(4). Ag$ (અયસ્કના નિક્ષાલન દરમિયાન) |
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