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Question
Match the Right column with the Left column
| Left Column | Right Column |
|---|---|
| 2.2.1 Metal present in German silver | (a) Li |
| 2.2.2 A transuranium element | (b) Zn |
| 2.2.3 The metal extracted from calamine | (c) Pu |
| 2.2.4 Alkali metal present in second period of periodic table | (d) Ni |
WBBSE
Class X
Physical Science
Metallurgy
Periodic Table
01 Mark
2025
Answer
2.2.1 – (d), 2.2.2 – (c), 2.2.3 – (b), 2.2.4 – (a).
Explanation:
German silver is an alloy of Cu, Zn, Ni; Pu (plutonium) is a transuranic element beyond uranium; calamine (ZnCO₃) yields Zn; Li is group 1 in period 2.
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