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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.
पर्याय
True
False
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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.
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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.
Write the missing reactants and products and balance the equations.
................+ HCI `→` NaCI + `"H"_2"O"` + .........................
MATCH THE COLUMNS
| 1 . `H_2` + `CI_2` `→` 2HCI | a. displacement reaction |
| 2. `2FeCI_3`+ `H_2` `→` `2FeCI_2` +2HCI` | b. addition of an electronegative redical |
| 3. Fe + `CuSO_4` `→``FeSO_4` +Cu` | c. removal of an electronegative redical |
| 4. `2H_2O` +`4NO_2`+`O_2` `→` `4HNO_3` | d.reduction by adding hydrogen |
| 5. 3Fe +`3CI_2` `→` `2FeCI_3` | e.electrolysis of water |
| 6. `FeCI_3`+ 3NaOH `→``Fe(OH)_3``↓`+NaCI | F.double decomposition,precipitation reaction |
| 7.`2H_2O` `→` `2H_2``↑`+`O_2` | e. combination or synthesis reaction |
What is the reaction called when oxidation and reduction take place simultaneously? Explain with one example.
Write the chemical reaction where the following changes are observed.
Precipitate is formed
What do you observe? When
Barium chloride is added to sodium sulphate solution
Name: A brown gas
What do you observe when dilute sulphuric acid is added to the following:
Sodium Sulphide
Beating an egg to make a cake is a ______.
Why is spoiling food a chemical change?
