EASY
Earn 100

What are metal salts and explain how aluminium reacts with the metal salt, manganese dioxide?

Important Questions on Metals and Non-Metals

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Science>Chemistry>Metals and Non-Metals>Chemical Properties of Metals
The name of the metal that is immersed in kerosene oil is
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What are amphoteric oxides? Give an example.

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Why is sodium kept immersed in kerosene oil? 

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Science>Chemistry>Metals and Non-Metals>Chemical Properties of Metals
List one metal found in the free state in the earth’s crust and mention where it is located in the activity series.
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Science>Chemistry>Metals and Non-Metals>Chemical Properties of Metals
Why should we not throw small pieces of sodium into a laboratory sink?
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Science>Chemistry>Metals and Non-Metals>Chemical Properties of Metals
What are amphoteric oxides?
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Science>Chemistry>Metals and Non-Metals>Chemical Properties of Metals
What are amphoteric oxides? 
HARD
Science>Chemistry>Metals and Non-Metals>Chemical Properties of Metals
Identify the most reactive and least reactive metals among the following: 
Al, K, Cu, Au. 
 
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Answer the following:

Why are highly reactive metals such as Aluminium is used as reducing agents?

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Science>Chemistry>Metals and Non-Metals>Chemical Properties of Metals

Attempt the following:

The metal sodium is kept immersed in Kerosene oil in the school laboratory. Why it is not kept the open?

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Science>Chemistry>Metals and Non-Metals>Chemical Properties of Metals

Which gas is usually liberated when an acid reacts with a metal? Illustrate with an example. How will you test for the presence of this gas?

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A student added few pieces of aluminium metal to two test tubes A and B containing aqueous solutions of iron sulphate and copper sulphate. In the second part of her experiment, she added iron metal to another test tubes C and D containing aqueous solutions of aluminium sulphate and copper sulphate. In which test tube or test tubes will she observe colour change ? On the basis of this experiment, state which one is the most reactive metal and why.
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Science>Chemistry>Metals and Non-Metals>Chemical Properties of Metals
An atom has electronic configuration 2, 8. 7. What is the atomic number of this element.
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Science>Chemistry>Metals and Non-Metals>Chemical Properties of Metals
Which of the following metal is the most reactive?
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What are amphoteric oxides? Give two examples of amphoteric oxides.
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Which metal produces dihydrogen (H2) gas by reaction with cold water?
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Food cans are coated with tin and not with zinc because

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Science>Chemistry>Metals and Non-Metals>Chemical Properties of Metals
What happens when metals are burnt in the air? Give one example.
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Science>Chemistry>Metals and Non-Metals>Chemical Properties of Metals

Give reason:

Metals like sodium and potassium are stored under oil.

HARD
Science>Chemistry>Metals and Non-Metals>Chemical Properties of Metals
What are amphoteric oxides? Give an example. Write balanced chemical equations to justify your answer.