Question

7. Which of the following metals is the most malleable ?
C. Silver D. Gold
A. Copper B. Aluminium
8. Which metal can be easily cut by a knife ?
A. Copper B. Magnesium
C. Sodium D. Aluminium
9. Which gas is released when metal reacts with dilute hydrochloric acid?
A. Oxygen B. Hydrogen
C. Chlorine D. Nitrogen
10. Which of the following metal strips burns with a white bright flame when kept on a candle
flame? A. Copper B. Magnesium C. Silver D. Gold
11. What is the nature of metallic oxide?
C. Basic D. None of them
A. Neutral B. Acidic
12. What is the nature of non-metallic oxide?
C. Basic D. None of them
A. Neutral B. Acidic
13. Which metal can react easily with cold water?
A. Gold B. Silver
D. Calcium
C. Magnesium
14. Which metal is good conductor Of electricity ?
A. Silver B. Gold
C. Copper
D. Aluminium
15. Which oxide turns moist red litmus paper blue?​

Answer 1

Answer:

7) (D) gold

8) (c) sodium

9) (B) hydrogen

10) (B) magnesium

11) (C) basic

12) (B) acidic

13) (D) calcium

14) (A) silver

15) acidic

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Answer 2

7, Gold and silver. 8, Sodium. 9,Hydrogen 10, Magnesium. 11,Basic 12,Acidic. 13, Magnesium. 14, Silver. 15, Oxides of group I and II are basic in nature.Hence they turn litmus examples are Na,K,Mg,Ca, etc.

Explanation:

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