EASY
10th CBSE
IMPORTANT
Earn 100

Give reason for the following
Carbon is not used for extracting aluminum from aluminium oxide.

Important Questions on Metals and Non-Metals

EASY
10th CBSE
IMPORTANT
NEW ERA CHEMISTRY Textbook for Class X>Chapter 3 - Metals and Non-Metals>MOCK TEST>Q 5
Give reason for the following:
Copper is used in making electrical circuits but not the alloys brass and bronze.
MEDIUM
10th CBSE
IMPORTANT
NEW ERA CHEMISTRY Textbook for Class X>Chapter 3 - Metals and Non-Metals>MOCK TEST>Q 6
Give reason why copper is used to make hot water tanks but steel (an alloy of iron) is not?
MEDIUM
10th CBSE
IMPORTANT
NEW ERA CHEMISTRY Textbook for Class X>Chapter 3 - Metals and Non-Metals>MOCK TEST>Q 7

Why is titanium called strategic metal? Mention two of its properties which makes it so special.

MEDIUM
10th CBSE
IMPORTANT
NEW ERA CHEMISTRY Textbook for Class X>Chapter 3 - Metals and Non-Metals>MOCK TEST>Q 8
On placing a piece of zinc metal in a solution of mercury chloride, it acquires a silvery surface but when it is placed in a solution of magnesium sulfate no change is observed. State the reason for the behavior of zinc metal.
MEDIUM
10th CBSE
IMPORTANT
NEW ERA CHEMISTRY Textbook for Class X>Chapter 3 - Metals and Non-Metals>MOCK TEST>Q 9
Write a chemical equation to illustrate the use of aluminium for joining cracked railway lines. What is the process called?
EASY
10th CBSE
IMPORTANT
NEW ERA CHEMISTRY Textbook for Class X>Chapter 3 - Metals and Non-Metals>MOCK TEST>Q 10
Why is hydrogen gas not evolved when most metal react with nitric acid?
EASY
10th CBSE
IMPORTANT
NEW ERA CHEMISTRY Textbook for Class X>Chapter 3 - Metals and Non-Metals>MOCK TEST>Q 11
Give two methods to prevent rusting of iron.
HARD
10th CBSE
IMPORTANT
NEW ERA CHEMISTRY Textbook for Class X>Chapter 3 - Metals and Non-Metals>MOCK TEST>Q 12
Explain with the help of a diagram, how copper metal can be refined? Label the important arrangement in the experimental set-up.