EASY
10th Madhya Pradesh Board
IMPORTANT
Earn 100

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

Important Questions on Metals and Non-metals

MEDIUM
10th Madhya Pradesh Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS X>Chapter 3 - Metals and Non-metals>EXERCISES>Q 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 the figure below.
Question Image  
(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.

MEDIUM
10th Madhya Pradesh Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS X>Chapter 3 - Metals and Non-metals>EXERCISES>Q 10
State two ways to prevent the rusting of iron.
MEDIUM
10th Madhya Pradesh Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS X>Chapter 3 - Metals and Non-metals>EXERCISES>Q 11
What type of oxides are formed when non-metals combine with oxygen?
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10th Madhya Pradesh Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS X>Chapter 3 - Metals and Non-metals>EXERCISES>Q 12
Give reasons-
Platinum, gold and silver are used to make jewellery.
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10th Madhya Pradesh Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS X>Chapter 3 - Metals and Non-metals>EXERCISES>Q 12
Give reasons: Sodium, potassium and lithium are stored under oil.
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10th Madhya Pradesh Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS X>Chapter 3 - Metals and Non-metals>EXERCISES>Q 12
Give reasons
Aluminium is a highly reactive metal, yet it is used to make utensils for cooking.
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10th Madhya Pradesh Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS X>Chapter 3 - Metals and Non-metals>EXERCISES>Q 12
Give reasons-
Carbonate and sulphide ores are usually converted into oxides during the process of extraction.
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10th Madhya Pradesh Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS X>Chapter 3 - Metals and Non-metals>EXERCISES>Q 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.