Advertisements
Advertisements
प्रश्न
State whether the following statement is true or false. In case a statement is false, write the corrected statement.
Condensation of steam is not a chemical change.
विकल्प
True
False
Advertisements
उत्तर
This statement is True.
Explanation:
Steam condensation is a physical change, as it involves a change of state from gas to liquid without altering the chemical composition.
APPEARS IN
संबंधित प्रश्न
State whether the following statement is true or false. In case a statement is false, write the corrected statement.
Iron and rust are the same substances.
MULTIPLE CHOICE QUESTIONS
Tick the most appropriate answer.
Compounds, which in their molten state allow an electric current to pass through them are called
- electrolytes
- non-electrolytes
- non-conductors
- none of these
Fill in the blank:
In some chemical reactions an insoluble ________ is formed when two solutions are mixed.
Out of sodium and sulphur which is a metal? Explain its reaction with the oxygen.
Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
Oxygen is a ______ in respiration.
Give an example of a reaction where the following are involved
Catalyst
Write the chemical reaction where the following changes are observed.
Precipitate is formed
What do you observe when dilute sulphuric acid is added to the following:
Sodium Sulphide
Both CO2 and H2 gases are ______.
______ is the chemical name of slaked lime.
