What are compounds? Give two examples.

Short/Brief Note

A compound is a pure substance that is formed when the atoms of two or more elements combine chemically in definite proportions.
Example : H₂O, NaCl,

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Chapter 3: Matter Around Us - Evaluation [Page 39]

Chapter 3 Matter Around Us
Evaluation | Q V. 11. | Page 39

Name the elements present in Sugar

Name the elements present in Ammonia

Name the elements present in Marble

What is the proportion of element present in the following compound?
NO₂

Write the molecular formulae of compound hydrogen sulphide.

Explain the term compounds.

State true of false. If false, give the correct statement.

Compounds and elements are pure substances.

Mention any four compounds and their uses.

Sodium chloride is used as table salt and for flavoring and preserving food.

A compound has a fixed ______.