MEDIUM
10th CBSE
IMPORTANT
Earn 100

What is reactivity series? How does the reactivity series of metals help in predicting the relative activities of various metals?

Important Questions on Metals and Non-Metals
HARD
10th CBSE
IMPORTANT
Out of three metals and . reacts with cold water, with hot water and with steam only. Identify and Z and also arrange them in order of increasing reactivity.

MEDIUM
10th CBSE
IMPORTANT
What happens when magnesium is treated with very dilute nitric acid?

MEDIUM
10th CBSE
IMPORTANT
What happens when steam is passed over red-hot iron?

MEDIUM
10th CBSE
IMPORTANT
Why does aluminium become dull after sometime?

EASY
10th CBSE
IMPORTANT
State the change that occurs when an iron nail is left exposed to humid air. Write also the balanced chemical equation for the reaction that occurs.

MEDIUM
10th CBSE
IMPORTANT
Give a reason for the following:
Schools bells are made-up of metals.

EASY
10th CBSE
IMPORTANT
Give a reason for the following:
Electrical wires are made-up of copper.

EASY
10th CBSE
IMPORTANT
State the two properties of the following metal which make it suitable for:
Copper and aluminium for making electric wires.
