Give one example of change which occurs on heating but can be reversed.

One Line Answer

An iron rod’s heating is a reversible process.

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Chapter 6: Changes Around Us - Long Answer Questions [Page 35]

Chapter 6 Changes Around Us
Long Answer Questions | Q 15. (a) | Page 35

Very Short Answer Type Question:
Some common changes are given in the below Table. Which of these changes do you think can be reversed?

Change	Can be reversed
(i) Raw egg to boiled egg	Yes/No
(ii) Batter to idli
(iii) Wet clothes to dirty clothes
(iv) Woollen yarn to knitted sweater
(v) Grain to its flour
(vi) Cold milk to hot milk
(vii) straight string to a cold string
(viii) Bud to flower
(ix) Milk to paneer
(x) Cow dung to biogas
(xi) stretched rubber band to its normal size
(xii) Melting of ice-cream

Circle the odd one.

What is reversible change?

When a candle is lit the following changes are observed.

Periodical removal of one of the products of a reversible reaction increases the yield.

Water on ______ changes to ice and on ______ comes back to water.

What are irreversible changes?

The blackening of the Silver anklet is a (an) ______.

Give one example of change which occurs on cooling but can be reversed.

Change of a bud into a flower is a change which cannot be reversed. Give four more such example.