Hello guys, welcome to your own blog 'Pareeksha Time'. In this article, you will read CBSE Class 10 Science MCQs of Chapter 3. You will read Metals and Non-metals MCQs for Term-1 Board Exams 2021-22.
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Metals and Non-Metals MCQs|MCQ Questions for Class 10 Chemistry Chapter 3 with Answers:-
1. The ability of metals to be drawn into thin wires is known as:
(a) Ductility
(b) Malleability
(c) Sonority
(d) Conductivity
Answer: (a) Ductility
2. Which of the given properties is generally not shown by metals?
(a) Electrical conduction
(b) Sonorous in nature
(c) Dullness
(d) Ductility
Answer: (c) Dullness
3. The most abundant metal in the earth’s crust is:
(a) Iron
(b) Aluminium
(c) Calcium
(d) Sodium
Answer: (b) Aluminium
4. The metal which is liquid at room temperature is:
(a) Bromine
(b) Mercury
(c) Iodine
(d) Potassium
Answer: (b) Mercury
5. The poorest conductor of heat among metals is:
(a) Lead
(b) Mercury
(c) Calcium
(d) Sodium
Answer: (a) Lead
6. Due to its semiconductor properties the non-metal used in computer, T.V. etc. is:
(a) Carbon
(b) Silicon
(c) Bromine
(d) Fluorine
Answer: (b) Silicon
7. 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
Answer: (a) Sonorousness
8. An element reacts with oxygen to give a compound with a high melting point. The compound is soluble in water. The element is likely to be:
(a) Calcium
(b) Carbon
(c) Iron
(d) Silicon
Answer: (c) Iron
9. Generally metals react with acids to give salt and hydrogen gas. Which of the given acids does not give hydrogen gas on reacting with metals (except Mn and Mg)?
(a) H₂SO₄
(b) HCl
(c) HNO₃
(d) All the these
Answer: (c) HNO₃
10. Which of the following metals are obtained by electrolysis of their chlorides in molten state?
(i) Na
(ii) Ca
(iii) Fe
(iv) Cu
(a) (i) and (iv)
(b) (iii) and (iv)
(c) (i) and (iii)
(d) (i) and (ii)
Answer: (d) (i) and (ii)
11. Which of the following alloys contains a non-metal as one of its constituents?
(a) Steel
(b) Brass
(c) Amalgam
(d) Bronze
Answer: (a) Steel
12. During smelting, an additional substance is added which combines with impurities to form a fusible product known as
(a) Slag
(b) Mud
(c) Gangue
(d) Flux
Answer: (a) Slag
13. 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
Answer: (d) Sodium > Magnesium > Zinc > Iron
14. The sulphide ores are converted into oxides by heating strongly in the presence of excess air. This process is known as
(a) Roasting
(b) Smelting
(c) Calcination
(d) Refining
Answer: (a) Roasting
15. The atomic numbers of four elements A, B, C and D are 6, 8, 10 and 12 respectively. The two elements which can react to form ionic bonds (or ionic compound) are:
(a) A and D
(b) B and C
(c) A and C
(d) B and D
Answer: (d) B and D
16. An aluminium strip is kept immersed in freshly prepared ferrous sulphate solution taken in a test tube, the change observed is that:
(a) Green solution slowly turns brown
(b) Lower end of test tube become slightly warm
(c) A colourless gas with the smell of burning sulphur is observed
(d) Light green solution changes to blue
Answer: (a) Green solution slowly turns brown
17. Which among the given alloys contains mercury as one of its constituents?
(a) Stainless steel
(b) Alnico
(c) Solder
(d) Zinc amalgam
Answer: (d) Zinc amalgam
18. Oxides of moderately reactive metals like Zinc, Iron, Nickel, Tin, Copper etc. are reduced by using:
(a) Aluminium as reducing agent
(b) Sodium as reducing agent
(c) Carbon as reducing agent
(d) Calcium as reducing agent
Answer: (c) Carbon as reducing agent
19. The electronic configurations of three elements X, Y and Z are X – 2, 8; Y – 2, 8, 7 and Z – 2, 8, 2. Which of the following is correct?
(a) X is a metal.
(b) Y is a metal.
(c) Z is a non-metal.
(d) Y is a non-metal and Z is a metal
Answer: (d) Y is a non-metal and Z is a metal
20. Cu2S + 3Cu2O → 6Cu + SO2 The above process is:
(a) Auto-reduction
(b) Chemical reduction
(c) Electrolytic reduction
(d) None of these
Answer: (a) Auto-reduction
21. 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
Answer: (d) Rough and Granular
22. The metal which can be extracted from the bauxite ore is:
(a) Na
(b) Mn
(c) Al
(d) Hg
Answer: (c) Al
23. Which of the following pairs will give displacement reactions?
(a) NaCl solution and Coppe metal
(b) MgCl2 solution and Aluminium metal
(c) FeSO4 solution and Silver metal
(d) AgNO3 solution and Copper metal
Answer: (d) AgNO3 solution and Copper metal
24. Reaction between X and Y, forms compound Z. X loses electron and Y gains electron. Which of the given 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: (b) Has low melting point
25. Which of the following metals liberate hydrogen with 5% HNO3 ?
(i) Cu
(ii) Zn
(iii) Mn
(iv) Mg
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (iii) and (iv)
(d) (i) and (iv)
Answer: (c) (iii) and (iv)
26. Which one of the following figures correctly describes the process of electrolytic refining?
Answer: (c)
27. Metal always found in a free state is:
(a) Gold
(b) Silver
(c) Copper
(d) Sodium
Answer: (a) Gold
28. In general, the number of electrons in the outermost shell of a metal atom is:
(a) 1
(b) 1 to 3
(c) 5 to 8
(d) 8
Answer: (b) 1 to 3
So guys here comes end. In this article, I shared 25+ Metals and Non-metals MCQs of CBSE Class 10 Chemistry MCQs 2021-22.
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