Differentiate reversible and irreversible reactions.

Distinguish Between

Reversible reaction	Irreversible reaction
1. Reactions can be reversed.	1. The reaction cannot be reversed.
2. It proceeds in both directions.	2. It is unidirectional.
3. It attains equilibrium.	3. Equilibrium is not attained.
4. It is relatively slow.	4. It is fast.

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Chapter 10: Types of Chemical Reactions - Evaluation [Page 153]

Chapter 10 Types of Chemical Reactions
Evaluation | Q V. 4. | Page 153

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

Long Answer Type Question:
How does curd being set? Is this change reversible?

An example for reversible change is

Match the following.

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

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

Touch me not plant: ______:: digestion of food: Irreversible change.

Can we reverse the following change? If yes, suggest the name of the method.

Water vapour into water

Give one example of change which occurs on heating but cannot be reversed.

Paheli mixed flour and water and

Identify the changes (i) to (iv) as the changes that can be reversed or that cannot be reversed.