Advertisements
Advertisements
प्रश्न
How can a change occur in a substance?
Advertisements
उत्तर
A change can occurs in a substance by an alteration in the properties such as colour, texture and the state of the substance since there is formation of a new substance.
APPEARS IN
संबंधित प्रश्न
Fill in the blank
Burning of fuel is a _______ change.
Distinguish between the following.
Periodic change and non-periodic change
Distinguish between the following.
Natural change and man-made change
Under which different types can the following changes be classified?
Occurrence of an earthquake.
Give reason.
While purchasing canned food, its expiry date should be checked.
Give reason.
A dry handkerchief gets wet at once on dipping in water, but it takes longer for a wet handkerchief to dry.
Explain in brief the involvement of energy in physical and chemical changes.
Fill in the blank with the correct word of the statement given below:
Ammonium chloride, a sublimable solid undergoes _________ on heating.
______ is the process in which something becomes different from what it was earlier.
Cut vegetables turn brown when exposed to air, this is due to ______.
