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General Chemistry Previously Asked Questions: Alloys
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General Chemistry Previously Asked Questions: Alloys
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25 Questions

1. Which one of the following alloys is called an amalgam?
2. Which metal exists as a common component in Brass, Bronze and German Silver?
3. Alloy of which metal is used to make aeroplane and parts of the compartment of the train?
4. Galvanized iron is coated with
5. Bronze is an alloy of copper and
6. Solder used in soldering metal pieces consists of any alloy of
7. Statement (A): Galvanized iron does not rust. Statement (R): Zinc has the efficiency of oxidation.
8. Which one of the following elements is not present in the German Silver?
9. The plates of galvanized iron remains protected from rust because the existence of
10. Combination of which substance in the alloy renders stainless steel non-magnetic?
11. Brass is a combination of what metals?
12. Check these statements.
1. Brass is an alloy of Copper and Zinc.
2. Magnetite is the main ore of Aluminium.
3. Mercurius Solubilis are that substance which mainly involves mercury.
4. Potassium Nitrate (KNO3) is a chemical used in photography. Which of the above are true? Code
13. Bronze is an alloy of
14. How much carbon does steel contain?
15. Brass gets fade colour in air due to the presence of
16. The important metal used with iron to make it rust free
17. Match List-I with List-II and select the correct answer using the code given below the lists. List-I (Naturally occurring substance)
(a) Diamond (b) Marble
(c) Sand (d) Ruby List-II (Elements present)
1. Calcium 2. Silicon
3. Aluminium 4. Carbon Code
(a) (b) (c) (d)
18. Which of the following elements are included in stainless steel?
19. To make the steel hard requires increase in
20. Mercury metal mixture is
21. Which pair of following is of Copper alloys?
22. Which of the following elements is added to iron to produce steel which can resist high temperature, have high hardness and abrasion resistance?
23. Steel is further processed to obtain stainless steel by adding some element. Which one of the following is not used for this purpose?
24. What is mixed with iron to make stainless steel?
25. In the case of rusting, the weight of iron

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