Q.

Which combination of following terms is  matched correctly?(I) Inter molecular forces(II) Latent heat of vaporisation(III) Vapour pressure

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a

I            II           IIIHigh    Weak   Small

b

High    Strong Large

c

Low     Weak   Large

d

Low     Strong  Small

answer is A.

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Detailed Solution

Liquid ⇌ Vapour (a) If vapour pressure is high, it means equilibrium is in forward side. This is attained when inter molecular forces holding the molecules are of weak nature. Low heat is required to convert liquid into vapour. Thus, (a) is correct. (b) Thus, incorrect. (c) When vapour pressure is high, it means inter molecular forces are weak hence (c) is incorrect. (d) When, vapour pressure is low, inter molecular forces are strong, hence large heat is required thus, (d) is incorrect.
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Which combination of following terms is  matched correctly?(I) Inter molecular forces(II) Latent heat of vaporisation(III) Vapour pressure