JEE Main Chemistry question

Which of the alkali metal chloride is expected to have highest m.p.?

(A)LiCl
(B)NaClCorrect
(C)KCl
(D)RbCl

Answer: (B)

Solution

Although lattice energy is highest for LiCl based on ionic size alone, lithium's small, highly polarising cation imparts significant covalent character to LiCl (Fajans' rule), which actually lowers its melting point relative to the more

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-137814