CBSE Class 10 - Science - CH3 - Metals and Non-Metals (MCQs)

Metals and Non-Metals

MCQs

Check in Periodic Table
How many metals, non-metals and metalloids?

1. Which of the following is the best electrical conductor?

(a) Gold

(b) Silver

(c) Copper

(d) Aluminium

2. Which of the following is NOT True for metals?

(a) Generally, metals are malleable.

(b) Metals are good conductors of heat.

(c) Metals are electronegative by nature.

(d) Metals displace hydrogen gas from dilute acids.

3. 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

4. Bauxite is an ore of which metal

(a) iron

(b) aluminium

(c) copper

(d) tin

5. Which of the following pairs will give displacement reactions?

(a) NaCl solution and copper metal

(b) MgCl₂ solution and aluminium metal

(c) FeSO₄ solution and silver metal

(d) AgNO₃ solution and copper metal.

6. Which of the following methods is suitable for preventing an iron frying pan from rusting?

(a) Applying grease

(b) Applying paint

(c) Applying a coating of zinc

(d) All of the above.

7. An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be

(a) calcium

(b) carbon

(c) silicon

(d) iron.

8. Food cans are coated with tin and not with zinc because

(a) zinc is costlier than tin.

(b) zinc has a higher melting point than tin.

(c) zinc is more reactive than tin.

(d) zinc is less reactive than tin.

9. Haematite is an ore of

(a) iron

(b) aluminium

(c) copper

(d) tin

10. What are the constituents of alloy solder?

(a)  Copper, zinc

(b)  Copper, tin

(c)  Lead, Zinc

(d)  Lead, tin

11. Which of the is more reactive?

(a) Hg

(b) Al

(c) Ag

(d) Ca

12. By which reaction metal is obtained from metal oxide?

(a) Liquefaction

(b) Reduction

(c) Calcination

(d) Roasting

13. Which non-metallic element is in liquid form?

(a) Carbon

(b) Hydrogen

(c) Bromine

(d) Phosphorus

14.  Which of the following non-metal is a good conductor of electricity?

(a) Graphite

(b) Phosphorus

(c) Hydrogen

(d) Bromine

15. Which of the following is not a half-metal?

(a) silicon,

(b) boron,

(c) arsenic

(d) chlorine

Answers:

1. (b) Silver

2. (c) Metals are electronegative by nature.

3. (b) 1 to 3

4. (b) aluminium

5. (d) AgNO₃ solution and copper metal.

6. (c) Applying a coating of zinc

7. (a) calcium

8. (c) zinc is more reactive than tin.

9. (a) iron

10. (d)  Lead, tin

11. (d) Ca

12. (b) Reduction

13. (c) Bromine

14. (a) Graphite

15. (d) chlorine