Question

Melting points of four solids A,B,C and D are 78°C,262°C,100°C and 168°C.Arrange them in the decreasing order of their inter particle force of attraction.

Answer 1

Answer:

Given conditions ⇒

Melting Point of A = 78° C

Melting Point of B = 262° C

Melting Point of C = 100° C

Melting Point of D = 168° C

We know, Melting point of the solids are directly proportional to the force of the attraction between its molecules.

∴ Solids having the high force of the attraction between its molecules = Solids having the High melting Point = B

In Descending Order,

B > D > C > A

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Answer 2

Answer:

262°C, 168°C, 100°C, 78°C

B, D, C, A

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