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Science Mission Book Class 8 Chater 04- Metals and Non Metals Question answer Part 01

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 Metals and Non Metals Question answer of Science Mission Book Class 8

science mission class 8 solutions chapter 4

A. Multiple choice questions

1. Which one of the following is a non-metal?

(a) Sodium (b) Potassium (c) Sulphur (d) Platinum                                                          

Ans . Sulphur

2. Property of metal to be drawn into wire is known as

(a) Malleability (b) Ductility (c) Lustrous (d) Tensile strength                                             

Ans. Ductility

3. Property of metal to be beaten into thin sheet is known as

(a) Malleability (b) Ductility (c) Lustre (d) Tensile strength                                               

Ans. Malleability

4. Metal used in galvanising iron is

 (a) Zinc (b) Nickel (c) Tin (d) Aluminium                                                                         

Ans. Zinc

5. Which one of the following is a metal?

(a) Graphite (b) Iodine (c) Phosphorus (d) Magnesium                                                    

Ans. Magnesium

6. Which metal is a liquid at room temperature?

(a) Magnesium (b) Aluminium (c) Mercury (d) Zinc                                                         

Ans. Mercury

7. Which metal will replace iron from iron sulphate solution?

(a) Zinc (b) Gold (c) Copper (d) Silver                                                                            

Ans. Zinc

8. A non-metal existing in liquid state at room temperature

(a) Carbon (b) Chlorine (c) Bromine (d) Iodine                                                                 

Ans. Bromine

9. A basic oxide is formed on oxidation of

(a) Sulphur (b) Sodium (c) Carbon (d) Phosphorus                                                         

Ans. Sodium

10. Which of the following will form acidic oxide?

(a) Sodium (b) Potassium (c) Sulphur (d) Iron                                                                 

Ans. Sulphur

11. Which of the following metals cannot be drawn into wire?

(a) Zinc (b) Copper (c) Silver (d) Gold                                                                             

Ans. Zinc

12. Which one of the following characteristics is correct?

(a) All metals are malleable (b) All non-metals are malleable

(c) Most metals are malleable (d) Most non-metals are malleable                                     

Ans. C

13. Which of the following metal is soft enough to cut with a knife?

(a) Sodium (b) Copper (c) Aluminium (d) Iron                                                                  

Ana. Sodium

14. Which of the following is the most reactive metal?

(a) Gold (b) Silver (c) Potassium (d) Iron                                                                        

Ans. Potassium

B. State whether 'true' or 'false

1. Mercury is a liquid metal. T

2. Non-metals are good conductor of heat.  False

3. Bromine is the only liquid non-metal. True

4. Oxide of a metal is acidic in nature. False

5. Copper replaces iron from iron sulphide solution. False

6. Metals are sonorous. True

7. Non-metals are ductile. False

8. Gold gets corroded when it reacts with water. False

9. Hydrogen gas is evolved when a metal reacts with an acid. True

10. Graphite and diamond are non-metals. True

11. Metalloids are good conductors of electricity. False

12. Nickel-plating on iron is to protect it from corrosion. True

13. Hydrogen gas is evolved when a piece of sodium metal is placed on water. True

14. Metals react with oxygen to produce acidic oxides. False

15. Zinc metal can displace copper from copper sulphate solution. True

C. Give one word answer.

1. Property of a substance which can be beaten into a foil.                                

 Ans. Malleability

2. Property of a substance which can be drawn into wire.                                    

Ans. Ductility

3. A substance that gives out a metallic sound when struck.                              

  Ans. Sonorous

4. A material which is capable of conducting heat and electricity.                          

Ans: Good Conductor like Cupper

5. A kind of carbon used in writing pencils.                                                         

Ans. Graphite

6. A metal which is stored in kerosene.                                                              

Ans. Sodium

7. A non-metal which is stored in water.                                                              

Ans. Phosphorus

8. Elements between metals and non-metals.                                                    

Ans. Metalloid

9. Name of a wax like soft metal.                                                                        

Ans. Sodium

10. Name of a metal which is a liquid at room temperature.                                  

Ans. Mercury

11. Name a non-metal which is lustrous and a good conductor of electricity.         

Ans. Graphite

Science Mission Book Class 8 Chater 04- Metals and Non Metals Question answer Part 01

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