Provide Some Important MCQ Questions for Class 10 Science Metals and Non-Metals with Answers?

Asked by Sudhanshu | 2 years ago |  534

1 Answer

Solution :-

Here you have got MCQ Questions for Class 10 Science Metals and Non-Metals with Answers. These will help you with getting prepare with the important Questions for these chapters. It also helps in the revision of the whole concept clearly. It gives an idea about what types of questions can be asked in the examination. These MCQ Questions are prepared as per the Latest Exam Pattern and syllabus. Students can solve these Class 10 Science MCQ Questions of Metals and Non-Metals with Answers and evaluate your exam preparation level.

Practice the listed 25 MCQ Questions which are given below and score better marks in the exams: -


1. The most abundant metal in the earth’s crust is

(a) Iron

(b) Aluminium

(c) Calcium

(d) Sodium


2. The poorest conductor of heat among metals is

(a) Lead

(b) Mercury

(c) Calcium

(d) Sodium


3. Which property of metals is used for making bells and strings of musical instruments like Sitar and Violin?

(a) Sonorousness

(b) Malleability

(c) Ductility

(d) Conductivity


4.  Non-metals form covalent chlorides because

(a) they can give electrons to chlorine

(b) they can share electrons with chlorine

(c) they can give electrons to chlorine atoms to form chloride ions

(d) they cannot share electrons with chlorine atoms


5. The highly reactive metals like Sodium, Potassium, Magnesium, etc. are extracted by the

(a) electrolysis of their molten chloride

(b) electrolysis of their molten oxides

(c) reduction by aluminium

(d) reduction by carbon

6. Galvanisation is a method of protecting iron from grudging by coating with a thin layer of

(a) Gallium

(b) Aluminium

(c) Zinc

(d) Silver


7. The ability of metals to be drawn into thin wire is known as

(a) Ductility

(b) Malleability

(c) Sonorousity

(d) Conductivity


8. Copper objects lose their shine and form green coating of

(a) Copper oxide

(b) Copper hydroxide and Copper oxide

(c) Basic Copper carbonate

(d) Copper carbonate


9. Chemically rust is

(a) Hydrated ferrous oxide

(b) Hydrated ferric oxide

(c) only ferric oxide

(d) none of these


10. Aluminium is used for making cooking utensils. Which of the following properties of aluminium are responsible for the same?

(i) Good thermal conductivity

(ii) Good electrical conductivity

(iii) Ductility

(iv) High melting point


(a) (i) and (ii)

(b) (i) and (iii)

(c) (ii) and (iii)

(d) (i) and (iv)


11. Which one of the following four metals would be displaced from the solution of its salts by other three metals?

(a) Mg

(b) Ag

(c) Zn

(d) Cu


12. Which of the given properties is generally not shown by metals?

(a) Electrical conduction

(b) Sonorous in nature

(c) Dullness

(d) Ductility


13. Which of the given can undergo a chemical reaction?

(a) \(MgSO_4 + Fe\)

(b) \(ZnSO_4 + Fe\)

(c) \(MgSO_4 + Pb\)

(d) \(CuSO_4 + Fe\)


14. Metals are extracted from:

(a) compounds

(b) minerals

(c) ores

(d) both minerals and ores.


15. Calcination is:

(a) heating the ore in a limited supply of air

(b) heating the ore in excess of air

(c) cooling the ore

(d) none of these.


16. Setting of Plaster of Paris takes place due to

(a) Solder

(b) Bronze

(c) Brass

(d) Bell metal


17. Heating pyrites to remove sulphur is called

(a) Smelting

(b) Calcination

(c) Liquation

(d) Roasting


18. The second most abundant metal in the earth’s crust is

(a) oxygen

(b) silicon

(c) aluminium

(d) iron


19. A student placed an iron nail in copper sulphate solution. He observed the reddish-brown coating on the iron nail which is

(a) soft and dull

(b) hard and flading

(c) smooth and shining

(d) rough and granular


20. An element A is soft and can be cut with a knife. This is very reactive to air and cannot be kept in open. It reacts vigorously with water. Identify the element from the following:

(a) Mg

(b) Na

(c) P

(d) Ca


21. Alloys are homogeneous mixtures of a metal with a metal or non-metal. Which among the following alloys contain non-metal as one of its constituents?

(a) Brass

(b) Bronze

(c) Amalgam

(d) Steel


22. During smelting, an additional substance is added which combines with impurities to form a fusible product. It is known as

(a) Slag

(b) Mud

(c) Gangue

(d) Flux


23. In extraction of copper, the flux used is

(a) \(CaO\)

(b) \(SiO_2\)

(c) \(FeO\)

(d) \(FeSiO_3\)


24. Metal always found in free state is:

(a) Gold

(b) Silver

(c) Copper

(d) Sodium


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

Answer Key

1. (b) Aluminium

2. (a) Lead

3. (a) Sonorousness

4. (b) they can share electrons with chlorine

5. (a) electrolysis of their molten chloride

6. (c) Zinc

7. (b) Malleability

8. (c) Basic Copper carbonate

9. (b) Hydrated ferric oxide

10. (d) (i) and (iv)

11. (b) Ag

12. (c) Dullness

13. (d) \(CuSO_4 + Fe\)

14. (c) ores

15. (a) heating the ore in a limited supply of air

16. (a) Solder

17. (d) Roasting

18. (d) iron

19. (d) rough and granular

20. (b) Na

21. (d) Steel

22. (d) Flux

23. (b) \(SiO_2\)

24. (a) Gold

25. (b) Has low melting point


Answered by Mayu | 2 years ago

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