Class 10 Science Chapter 3 Metals And Non Metals Quiz 15 (25 MCQs)

Quiz Instructions

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1. Which of the following is a pungent?
2. What is the general appearance of metals?
3. Type of element is a semiconductor
4. Lead and Mercury are
5. Identify the non metal that exists in liquid state
6. The impurities (sand, silt, soil, gravel, etc.) present in the ore are called gangue Solution
7. What is the primary use of aluminum?
8. Which metal is the poor conductor of heat.
9. The composition of aqua-regia is Concentrated HCl:Concentrated HNO3 is 3:1
10. $X^+$
11. The correct sequence of the given metals according to the descending order of their reactivity is .....
12. The poorest conductor of heat among metals is(a) Lead(b) Mercury(c) Calcium(d) Sodium
13. Identify the metal which is a poor thermal conductor
14. Which one of the following metals do not react with cold as well as hot water?
15. A non-metal used to preserve food material is:
16. Potassium (K), an alkali metal, and magnesium (Mg), an alkaline earth metal, both combine readily with bromine (Br), a halogen. What compound will each element (K and Mg) most likely form with bromine?
17. Which of the following is the correct arrange-ment of the given metals in ascending order of their reactivity?Zinc, Iron, Magnesium, Sodium(a) Zinc > Iron > Magnesium > Sodium(b) Sodium > Magnesium > Iron > Zinc(c) Sodium > Zinc > Magnesium > Iron(d) Sodium > Magnesium > Zinc > Iron
18. A mixture of different metals is known as
19. The ability of metals to be drawn into thin wires is called
20. ..... is used in vulcanization of rubber
21. Which of the following oxide(s) of iron would be obtained on prolonged reaction of iron with steam?
22. The characteristics of the anonymous compounds
23. PBSO $ _ {4} $ + with ..... >?
24. Which one among the following is an acidic oxide?
25. Reaction between X and Y forms compound Z. X loses electron and Y gains electron. Which of the following properties is not shown by Z?(a) Has high melting point(b) Has low melting point(c) Conducts electricity in molten state(d) Occurs as solid