Answer: Sulphur, Carbon and Nitre
2. Which is the only liquid nonmetal ?
Answer: Bromine
3. The first metal used by man was _____ ?
Answer: Copper
4. Which is the Most abundant Noble gas in the air ?
Answer: Argon
5. Which metal is present in Insulin ?
Answer: Zinc
6. Which metal is present in human tears ?
Answer: Zinc
7. Which metal is present in chlorophyll ?
Answer: Magnesium
8. Which metal is present in Sindur (the sacred material of Hindus) ?
Answer: Lead
9. Which metal is present in hemoglobin ?
Answer: Iron
10. Which is the Alkali metal used in photovoltaic cell ?
Answer: Cesium
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