Advertisements
Advertisements
प्रश्न
Give the example of a compound containing hydrogen and oxygen.
Advertisements
उत्तर
Example of Atoms of a different element forming a compound
2 Atom of H and 1 atom of O = H20
संबंधित प्रश्न
Fill in the blank
In a _______ the substances are not combined chemically.
Select the correct alternative from the choices given for the following statement:
A set of mixture is
Write true or false
A heterogeneous mixture has a uniform composition throughout the mixture.
Name the elements present in Ammonia
What is the proportion of element present in the following compound?
NO2
Name two compounds which dissolve in water.
Write the molecular formulae of compound carbon monoxide
What is the molecular formula of the following compound?
Hydrochloric acid
What is the molecular formula of the following compound?
glucose
State true of false. If false, give the correct statement.
Compounds and elements are pure substances.
Assertion: Air is a compound.
Reason: Air consists of carbon dioxide.
Mention any four compounds and their uses.
State whether true or false. If false, correct the statement.
Aspirin is composed of 60% Carbon, 4.5% Hydrogen and 35.5% Oxygen by mass. Aspirin is a mixture.
Sodium chloride is used as table salt and for flavoring and preserving food.
Classify the following as element and compound,
- Silver
- Ammonia
- Water
- Mercury.
Higher-Order Thinking questions:
Why is water considered a compound?
Reason out
Sand is also known as silica.
A compound has a definite ______.
Name the compounds used in fertilizers.
