MEDIUM
8th CBSE
IMPORTANT
Earn 100

Name a metal used as fuse wire.

Important Questions on Metals and Non-Metals

HARD
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 4 - Metals and Non-Metals>Check Point>Q 1
Name a metal whose chloride and sulphate salts are both insoluble.
HARD
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 4 - Metals and Non-Metals>Check Point>Q 1
Name a metallic chloride that is soluble in hot water but insoluble in cold water.
MEDIUM
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 4 - Metals and Non-Metals>Check Point>Q 2

Arrange the following metals in the decreasing order of chemical reactivity, placing the most reactive element first, copper, magnesium, iron, sodium, calcium, zinc.

MEDIUM
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 4 - Metals and Non-Metals>Check Point>Q 3
Name two metals that occur in free state in nature. What is the method of refining them?
MEDIUM
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 4 - Metals and Non-Metals>Check Point>Q 4

Explain the chemical change that causes corrosion of iron.

MEDIUM
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 4 - Metals and Non-Metals>Check Point>Q 5

If an iron nail is left in a filled bottle of boiled water, how long will it take to corrode?

EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 4 - Metals and Non-Metals>EXERCISES>Q A
Which non-metal is used in making pencils?
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 4 - Metals and Non-Metals>EXERCISES>Q A
Which non-metal is found mainly in free state in atmosphere?