CHEMISTRY QUESTIONS AND ANSWERS 1 to 5
1. First atomic theory was proposed by
Ans: John Dalton
2. The alloy of aluminium used for making magnet is
Ans: alnico
3. Which one of the following is an element?
Ans: diamond
4. Nucleus of an atom contains
Ans: protons and neutrons
5. Rare gases are
Ans: di atomic
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