EASY
9th CBSE
IMPORTANT
Earn 100

An element is made up of only one kind of . (molecule/ atom)

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Important Questions on Is Matter Around Us Pure
MEDIUM
9th CBSE
IMPORTANT
Brass is an alloy which is considered a _____.

EASY
9th CBSE
IMPORTANT
The elements which are sonorous are called _____.

MEDIUM
9th CBSE
IMPORTANT
Classify the following into elements and compounds

HARD
9th CBSE
IMPORTANT
Classify the following as elements or compounds
Iron, Iron suiphide, Sulphur, Chalk, Washing soda, Sodium, Carbon, Urea

MEDIUM
9th CBSE
IMPORTANT
What elements do the following compounds contain?
Sugar, Common salt

MEDIUM
9th CBSE
IMPORTANT
What are pure substances? Give two examples of pure substances.

EASY
9th CBSE
IMPORTANT
What are the two types of pure substances? Give one example of each type.

HARD
9th CBSE
IMPORTANT
Which of the following are ‘pure substances’?
Ice, Milk, Iron, Hydrochloric acid, Calcium oxide, Mercury, Brick, Wood, Air
