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प्रश्न
Select the correct answer from the choice given below.
A compound
विकल्प
nitrogen
ozone
zinc chloride
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उत्तर
zinc chloride
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
What is the difference between a pure substance and a mixture ?
The methods of separating components of a given mixture are based on the
Name the elements which form water.
How will you justify that water is a compound?
What is the proportion of element present in the following compound?
CO2
State the information obtained from the formula of a compound.
Write the molecular formulae of compound lead sulphide.
Give the example of a compound containing hydrogen and oxygen.
What is the molecular formula of the following compound?
glucose
Explain the term mixture.
Assertion: Oxygen is a compound.
Reason: Oxygen cannot be broken down into anything simpler.
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.
What is meant by compound?
Sodium chloride is used as table salt and for flavoring and preserving food.
Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured.
Name a non-metal which is known to form the largest number of compounds.
Higher-Order Thinking questions:
Why is water considered a compound?
