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Metals Non-metals

Extra Questions

Question 1: Which of the following metals can be used for making wires?

1. Iron
2. Copper
3. Gold
4. All of the above
   
   Answer: (d) All of the above

Question 2: Which of the following metals does not react even with concentrated hydrochloric acid?

1. Zinc
2. Iron
3. Copper
4. Sodium
   
   Answer: (c) Copper

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Question 3: Which of the following metals reacts vigorously with water?

1. Zinc
2. Copper
3. Sodium
4. Iron
   
   Answer: (c) Sodium

Question 4: Which metal is generally used for making a sewing needle?

1. Iron
2. Copper
3. Gold
4. Silver
   
   Answer: (a) Iron

Question 5: Which metal is used for making the filament of a bulb?

1. Copper
2. Tungsten
3. Platinum
4. Silver
   
   Answer: (b) Tungstten

Question 6: Which metal is used in thermometer?

1. Copper
2. Silver
3. Mercury
4. Nickel
   
   Answer: (c) Mercury

Question 7: Which of the following is an example of non-metal with lustre?

1. Coal
2. Chlorine
3. Phosphorus
4. Graphite
   
   Answer: (d) Graphite

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Question 8: Which of the following metals is the most reactive metal?

1. Sodium
2. Calcium
3. Zinc
4. Copper
   
   Answer: (a) Sodium

Question 9: Which of the following metals is the least reactive metal?

1. Zinc
2. Copper
3. Iron
4. Gold
   
   Answer: (d) Gold

Very Short Answer Type Questions

Question 1: Define metal?

Answer: Metal is a substance which is lustrous, sonorous, ductile, and is a good conductor of heat and electricity.

Question 2: Define non-metal?

Answer: Non-metal is a substance which is non-lustrous, non-sonorous, non-ductile, and is a bad conductor of heat and electricity.

Question 3: What do you understand by malleability?

Answer: Metals can be beaten into thin sheets. This ability is called malleability.

Question 4: What do you understand by ductility?

Answer: Metals can be drawn into thin wires. This ability is called ductility.

Question 5: What is sonority?

Answer: Metals produce a ringing sound when beaten with something. This ability is called sonority.

Question 6: What is lustre?

Answer: The typical shine on a metal is called lustre.

Question 7: What is the chemical formula of iron oxide?

Answer: Fe₂O₃

Question 8: What is the chemical formula of magnesium oxide?

Answer: MgO

Question 9: What is the chemical formula of copper hydroxide?

Answer: Cu(OH)₂

Question 10: What is the chemical formula of copper carbonate?

Answer: CuCO₃

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