Metals are elements that are hard, a good conductor of heat and electricity, malleable, sonorous, lustrous and they have high melting and boiling point except for cesium and gallium. Whereas non-metal don’t show such properties they are brittle, non-malleable, non-ductile, non-sonorous, a bad conductor of heat and electricity and they found in solids, liquids, and in gaseous form at room temperature. There are exceptions in both cases metals and non-metal.
1. Name the metal which is cut by a knife?
A. Sodium
B. Potassium
C. Lithium
D. All of the above
2. Name the non-metal which conducts the electricity?
A. Iodine
B. Diamonds
C. Graphite
D. None of the above
3. When a metal reacts with oxygen it forms ...
A. Metal oxide
B. Amphoteric oxide
C. Metal hydroxide
D. All of the above
4. When a metal reacts with water it forms ...
A. Metal oxide
B. Amphoteric oxide
C. Metal hydroxide
D. All of the above
5. What is the nature of the metal oxides?
A. Basic
B. Acidic
C. Amphoteric
D. None of the above
6. Select the correct order of metal reactivity?
A. K-Na-Mg-Ca
B. Na-K-Al-Ca
C. K-Na-Ca-Mg
D. Na-K-Al-Ca
7. Name the least reactive metal.
A. Silver
B. Gold
C. Platinum
D. Lead
8. What is the nature of non-metallic oxide?
A. Basic
B. Acidic
C. Neutral
D. Amphoteric
9. Which type of bond is formed when metal and non-metal react with each other?
A. Ionic bond
B. Covalent bond
C. Coordinate bond
D. All of the above
10. Name the metal liquid at room temperature.
A. Iodine
B. Mercury
C. Sodium
D. Potassium
11. Pick the correct mixture of alloy.
A. Brass-copper and zinc
B. Bronze-copper and tin
C. Amalgam-mercury and other metal
D. All of the above
12. Corrosion can be prevented by…
A. Alloying
B. Galvanization
C. Electroplating
D. All of the above
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