Advertisements
Advertisements
Question
Tick (√) the correct alternative from the choice given for the following statement.
The compound rust is a hydrated oxide of
Options
copper
aluminium
iron
gold
Solution
iron
APPEARS IN
RELATED QUESTIONS
Classify the changes involved in the following process as physical or chemical changes:
Photosynthesis
State whether the following statement is true or false. In case a statement is false, write the corrected statement.
Cutting a log of wood into pieces is a chemical change.
Ripening of fruits is a desirable change.
Classify the following changes as physical or chemical: curdling of milk
Classify the following as a physical or a chemical change.
Manufacture of salt from sea water
Classify the Following as a Physical Or a Chemical Change.
Formation of Clouds
Match the examples of changes in List I with the correct.
| List I | List II |
| 1. Expansion of a steel rod on heating | A: Physical change |
| 2. Rotting of eggs | B: Chemical change |
| 3. Milk turning sour | |
| 4. Tarnishing of copper | |
| 5. Separation of naphthalene from a mixture of naphthalene and sodium chloride. |
Give a reason why
Change of seasons is a periodic change while the change of weather is a non-periodic change.
Water is known as a universal solvent. Why?
Adding sugar to milk is a physical change.
