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General Chemistry Previously Asked Questions: Metals, Minerals, Ores : Properties, Uses
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General Chemistry Previously Asked Questions: Metals, Minerals, Ores : Properties, Uses
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25 Questions

1. The chemical structure of the pearl is
2. Which of the following is mainly used for the production of Aluminium?
3. Which of the following is lighter than water?
4. Which one of the following metals is liquid at ordinary temperature?
5. Of how many carats is the pure gold?
6. Which one of the following pairs of metals constitutes the lightest metal and heaviest metal, respectively?
7. Mica is a
8. Pearl is mainly constituted of
9. Which one of the following metals is liquid at room temperature?
10. Consider the following statements with reference to the periodic table of chemical elements.
1. Ionization potential gradually decreases along a period.
2. In a group of elements, electron affinity decreases as the atomic weight increases.
3. In a given period, electronegativity decreases as the atomic number increases. Which of these statement(s) is/are correct?
11. Iron is obtained from
12. The most commonly used substance in fluorescent tubes are
13. What are Rubies and Sapphires chemically known as?
14. Which is the hardest in the following?
15. The softest mineral, Talc
(Soapstone) is mainly
16. Which is the most reactive metal?
17. Which one of the following statements is correct?
18. The chemical name of limestone is
19. Assertion (A): Sodium metal is stored under kerosene. Reason (R): Metallic sodium melts when exposed to air.
20. Which one of the following liquids is very good conductor of heat?
21. Which one of the following is the hardest metal?
22. Which one of the following materials is very hard and very ductile?
23. Mercury is basically used in thermometer devices because its especiality is
24. The main constituents of pearl are
25. Aluminium metal is obtained from

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