question_answer

Which combination of statements is correct?

i. A pure substance is made up of only one kind of particles (atoms or molecules).

ii. The intermixing of particles of two different types of matter on their own is called diffusion.

iii. The force of cohesion is different between constituent particles of different kind of matter.

iv. The force of attraction between constituent particles of nail is very weak as compared to that of chalk.

v. Higher the melting point of a solid substance, lesser will be the force of attraction between its particles.

A) i, ii and iii

B) i, ii, iii and iv

C) ii, iii and iv

D) iii, iv and v

E) None of these