Advertisements
Advertisements
प्रश्न
State whether true or false. If false, correct the statement.
A compound cannot be broken into simpler substances chemically.
पर्याय
True
False
उत्तर
False.
Correct Statement: A compound can be broken into simpler substances chemically.
APPEARS IN
संबंधित प्रश्न
Fill in the blank
In a _______ the substances are not combined chemically.
Write true or false
The constituents of a mixture can only be separated by chemical means.
Name the elements present in Sugar
Write the molecular formulae of compound lead sulphide.
Tabulate a comparative chart – to differentiate between elements, compounds, and mixtures. Differentiate them with reference to existence
Tabulate a comparative chart – to differentiate between elements, compounds, and mixtures. Differentiate them with reference to Separation of compound
Assertion: Oxygen is a compound.
Reason: Oxygen cannot be broken down into anything simpler.
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.
Complete the table
| Compound | Constituent elements |
| Sodium carbonate | Sodium, Carbon. Oxygen |
| Water | |
| Calcium oxide | |
| Sugar | Carbon, Hydrogen, Oxygen |
Higher-Order Thinking questions:
Why is water considered a compound?
