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Chapter 3 Metal and Non-metal Class 10 Science NCERT Solutions

Class 10 Science NCERT Solutions Chapter 3: Metal and Non-metal is developed and witten by our expert teachers. Students can study our solutions of Chapter 3: Metal and Non-metal class 10 Science, Question 1. Which of the following pairs will give displacement reactions? (a) NaCl solution and copper metal (b) MgCl2 solution and aluminium metal (c) FeSO4 solution and silver metal (d) AgNO3 solution and copper metal., Question 2. Which of the following methods is suitable for preventing an iron frying pan from rusting? (a) Applying grease (b) Applying paint (c) Applying a coating of zinc (d) All of the above., Question 3. An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be (a) calcium (b) carbon (c) silicon (d) iron., Question 4. Food cans are coated with tin and not with zinc because (a) zinc is costlier than tin. (b) zinc has a higher melting point than tin. (c) zinc is more reactive than tin. (d) zinc is less reactive than tin., Question 5. You are given a hammer, a battery, a bulb, wires and a switch (a) How could you use them to distinguish between samples of metals and Non-metals? (b) Assess the usefulness of these tests in distinguishing between metals and non-metals., Question 6. What are amphoteric oxides? Give two examples of amphoteric oxides., Question 7. Name two metals which will

NCERT Solutions Class 10 Science
Chapter 3: Metal and Non-metal
Exercise Answers

=Question 1. Which of the following pairs will give displacement reactions?
(a) NaCl solution and copper metal
(b) MgCl2 solution and aluminium metal
(c) FeSO4 solution and silver metal
(d) AgNO3 solution and copper metal.

Question 1. Which of the following

=Question 2. Which of the following methods is suitable for preventing an iron frying pan from rusting?
(a) Applying grease
(b) Applying paint
(c) Applying a coating of zinc
(d) All of the above.

Question 2. Which of the following

=Question 3. An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be
(a) calcium
(b) carbon
(c) silicon
(d) iron.

Question 3. An element reacts with

=Question 4. Food cans are coated with tin and not with zinc because
(a) zinc is costlier than tin.
(b) zinc has a higher melting point than tin.
(c) zinc is more reactive than tin.
(d) zinc is less reactive than tin.

Question 4. Food cans are coated with

=Question 5. You are given a hammer, a battery, a bulb, wires and a switch
(a) How could you use them to distinguish between samples of metals and Non-metals?
(b) Assess the usefulness of these tests in distinguishing between metals and non-metals.

Question 5. You are given a hammer, a

=Question 6. What are amphoteric oxides? Give two examples of amphoteric oxides.

Question 6. What are amphoteric oxides?

=Question 7. Name two metals which will displace hydrogen from dilute acids, and two metals which will not.

Question 7. Name two metals which will

=Quesiton 8. In the electrolytic refining of a metal M, what would you take as the anode, the cathode and the electrolyte?

Quesiton 8. In the electrolytic

=Question 9. Pratyush took sulphur powder on a spatula and heated it. He collected the gas evolved by inverting a test tube over it, as shown in figure below. (a) What will be the action of gas on (i) dry litmus paper? (ii) moist litmus paper? (b) Write a balanced chemical equation for the reaction taking place.

Question 9. Pratyush took sulphur

=Quesiton 10. State two ways to prevent the rusting of iron.
Quesiton 11. What type of oxides are formed when non-metals combine with oxygen?

Quesiton 10. State two ways to prevent

=Quesiton 12. Give reasons (a) Platinum, gold and silver are used to make jewellery. (b) Sodium, potassium and lithium are stored under oil. (c) Aluminium is a highly reactive metal, yet it is used to make utensils for cooking. (d) Carbonate and sulphide ores are usually converted into oxides during the process of extraction.

Quesiton 12. Give reasons (a) Platinum,

=Quesiton 13. You must have seen tarnished copper vessels being cleaned with lemon or tamarind juice. Explain why these sour substances are effective in cleaning the vessels.

Quesiton 13. You must have seen

=Question 14. Differentiate between metal and non-metal on the basis of their chemical properties.

Question 14. Differentiate between

=Question 15. A man went door to door posing as a goldsmith. He promised to bring back the glitter of old and dull gold ornaments. An unsuspecting lady gave a set of gold bangles to him which he dipped in a particular solution. The bangles sparkled like new but their weight was reduced drastically. The lady was upset but after a futile argument the man beat a hasty retreat. Can you play the detective to find out the nature of the solution he had used?
Quesiton 16. Give reasons why co

Question 15. A man went door to door

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