Advertisements
Advertisements
प्रश्न
Paheli’s mother made a concentrated sugar syrup by dissolving sugar in hot water. On cooling, crystals of sugar got separated. This indicates a –
पर्याय
physical change that can be reversed.
chemical change that can be reversed.
physical change that cannot be reversed.
chemical change that cannot be reversed.
Advertisements
उत्तर
physical change that can be reversed.
Explanation:
Mixing of sugar in water is a physical change and crystals of sugar can be separated from a supersaturated solution hence it is a reversible change.
APPEARS IN
संबंधित प्रश्न
Name a chemical change which takes place in presence of:
Write true or false
Burning of paper and formation of curd are reversible changes.
Which of the following are physical changes and which are chemical changes ?
Classify the following as a physical or a chemical change.
Butter getting rancid
Classify the following as a physical or a chemical change.
Burning of paper
Differentiate between a physical change and a chemical change with reference to – Nature of change is temporary and reversible or permanent and irreversible.
State the observations seen, when milk in a dish is kept aside for a few hours or more. Is the change which occurs – a physical change or a chemical change. Give reasons.
Give the reason why the following is considered as chemical changes.
Sulphur when burnt in air evolves a gaseous acidic product.
Physical Change: Boiling::Chemical Change: ______.
Wood to sawdust:______:: Wood to Ash: Chemical change
