11.Match List-A with List-B
| List-A List-B
(i) Gold a. Jewellery (ii) Iron b. Machinery (iii) Aluminium c. Wrapping paper (iv) Carbon d. Fuel (v) Copper e. Electric wires (vi) Mercury f. Thermometers |
(A) (i)-3 (ii)-4 (iii)-5 (iv)-6 (v)-1 (vi)-2
(B) (i)-2 (ii)-3 (iii)-4 (iv)-5 (v)- 6 (vi)-1
(C) (i)-1 (ii)-2 (iii)-3 (iv)-4 (v)-5 (vi)-6
(D) (i)-6 (ii)-5 (iii)-4 (iv)-3 (v)- 2 (vi)-1
12. Beating of metal into thin sheets is called
(A) Ductility
(B) Malleability
(C) Sonorous
(D) None of the above
13. Silver foil and aluminium is an example of which property of metal?
(A) Sonorous
(B) Ductility
(C) Malleability
(D) None of the above
14.Which of the following is/are good conductor of electricity?
(A) Iron rod
(B) Nail
(C) Copper wires
(D) All of the above
15. Which of the following are bad conductor of electricity?
(A) Sulphur
(B) Coal
(C) Both (A) and (B)
(D) None of the above
16. The property of metal by which it can be drawn into thin wires are called
(A) Ductility
(B) Malleability
(C) Sonorous
(D) None of the above
17. The metals which produce sounds on struck hard are called
(A) Ductility
(B) Malleability
(C) Sonorous
(D) None of the above
18. Which of the following is/are properties of metals?
(A) Lustrous and malleability
(B) Hard and ductile
(C) sonorous and good conductor of heat and electricity
(D) All of the above
19. Which of the metal can be cut with knife?
(A) Sodium
(B) Potassium
(C) Both (A) and (B)
(D) Neither (A) nor (B)
20. The only metal which is found in liquid state at room temperature?
(A) Mercury
(B) Sodium
(C) Potassium
(D) Calcium
Answers:-
| 11-(C) | 12-(B) | 13-(C) | 14-(D) | 15-(C) | 16-(A) | 17-(C) | 18-(D) | 19-(C) | 20-(A) |