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CTET Prep: Science Questions - Chemistry - Metals and Their Compounds
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Most metals do not occur in their natural state. They are often found as compounds such as metal oxides, sulfides and halides.

Aluminium oxide is the main metal compound present in the ore known as bauxite. Iron pyrites or 'fool's gold' is mainly iron sulfide.

CTET Prep: Science Questions - Chemistry - Metals and Their Compounds
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25 Questions

1. Silicon is the main constituent of
2. Which of the following is an ore of copper here?
3. Which of the following is produced when concentrated cinnabar is roasted in the excess of air?
4. Van arkel method of purification of metals involves converting the metal to
5. Which one of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torchlights, electric shavers etc.?
6. Zone refining is a method to obtain
7. In the extraction of zinc the formation of blue flame is due to the burning of
8. The colour of iodine solution is discharged by shaking it with aqueous solution of
9. The solubility of AgBr in hypo is due to the formation of
10. In the reverberatory furnace
11. Steel contains
12. Which one of the following elements shows highest oxidation state?
13. Malachite is a mineral of
14. Both lanthanides and actinides have their last valance electron in
15. If a non-metal is added to the interstitial sites of a metal, then the metal becomes
16. The element with electronic configuration 3d54s1 is
17. The ore present in India in abundance is
18. Silver is present in
19. Lanthanides contraction is related with
20. Lithium reacts with nitrogen to form
21. The percentage of silver in german silver, is
22. The highest oxidation state shown by Mn is
23. Which of the following is not a property of the transition elements?
24. Which lanthanides are used in glass, blowers, goggles?
25. Oxidation state of iron in haemoglobin is