EASY
6th ICSE
IMPORTANT
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Sugar is a compound made up of

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Important Questions on Elements and Compounds

MEDIUM
6th ICSE
IMPORTANT
Nitrogen and hydrogen are the constituent elements of
MEDIUM
6th ICSE
IMPORTANT
Which of the following statements is incorrect?
MEDIUM
6th ICSE
IMPORTANT

State whether the following statement is true or false. Rewrite the false statement correctly.

A compound is a heterogeneous substance.

MEDIUM
6th ICSE
IMPORTANT

State whether the following statement is true or false. Rewrite the false statement correctly.

Properties of carbon dioxide are the same as those of carbon and oxygen.

EASY
6th ICSE
IMPORTANT

State whether the following statement is true or false. Rewrite the false statement correctly.

When two or more atoms of the same element combine, they form a molecule of an element.

MEDIUM
6th ICSE
IMPORTANT

State whether the following statement is true or false. Rewrite the false statement correctly.

When atoms of two or more elements combine chemically, they form a molecule of a compound.

MEDIUM
6th ICSE
IMPORTANT
Which of the following is the short way of representing a molecule of an element or a compound?
MEDIUM
6th ICSE
IMPORTANT
The formula of a molecule of oxygen is