Question

Match column I with column II and select the correct option from the codes given below.
Column IColumn II
(P) Expansion of metals on heating(i) Neither physical nor chemical change
(Q) A stone kept in the sunlight(ii) Chemical change
(R) Burning of a candle(iii) Combination of physical nor chemical changes
(S) Curdling of milk(iv) Physical change


A

(P) - (iv), (Q) - (i), (R) - (iii), (S) - (ii)

B

(P) - (iv), (Q) - (iii), (R) - (ii), (S) - (i)

C

(P) - (i), (Q) - (ii), (R) - (iii), (S) - (iv)

D

(P) - (i), (Q) - (iv), (R) - (ii), (S) - (iii)

Hard

Solution

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Correct option is
A

(P) - (iv), (Q) - (i), (R) - (iii), (S) - (ii)

P. Metals expand on heating and contract on cooling. During expansion or contraction, chemical properties of the metal remains unchanged. The only change is in the intermolecular spacing which is a physical change.

Q. Stone kept in sunlight remains same. It neither change physically nor chemically.

R. When candle burns, melting of wax is physical change while burning material is chemical change.

S. Curdling of milk is a chemical change as chemical behaviour of milk is changed.

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