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Class 8 Science Chapter 4 Materials Metals And Non Metals Quiz 4 (25 MCQs)

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1. Non-metals react with oxygen to produce non-metallic oxides which are
2. Non-metal used in purple colour solutions which is applied on wounds as an antiseptic
3. 2) What is the symbol of Arsenic?
4. Overall which are more useful
5. Which of the following metal burns with a dazzling white flame?
6. Which one of the following four metals would be displaced from the solution of its salt by the other three metals?
7. Materials around us can be classified into
8. One metal displaces another metal from its compound in aqueous solution
9. Which of the following can be beaten into thin sheets?
10. Which of the following is the only metal found in liquid state at room temperature?
11. Some substances that cause ..... air pollution, such as dust and pet hair, bother only those people who are sensitive to them.
12. Hydrogen, Helium, and Fluorine are all listed as-
13. Which among the following is ductile?
14. Property of metals by virtue of which these are able to be drawn into wire is
15. Hardin Electric Corporation is designing a new product that conducts electricity and can be made into thin sheets. Which material would BEST fit their needs?
16. Non metals are usually soft and dull
17. Which non-metal exists as liquid state at room temperature?
18. What is the healthy pH range in a water supply?
19. Two elements X and Y are reacted with oxygen to form their respective oxides. They are then dissolved in water. Element X forms a hydroxide which is basic in nature. Element Y forms an acid. What can elements X and Y be classified as?
20. All metal oxides are ..... in nature.
21. Nitrogen appears to be .....
22. Which of the following is not a metal?
23. When sulphur reacts with oxygen, the oxide formed is ..... in nature.
24. Where would the given set of elements i.e. Sodium and phosphorous be used?
25. A purple-colored non-metal forms a brown solution in alcohol which is applied on wounds as an antiseptic. Name the non-metal
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