The correct sequence of increasing covalent character is

Options

A. `BeCl_2 lt NaCl lt LiCl`
B. `NaCl lt LiCl lt BeCl_2`
C. `BeCl_2 lt LiCl lt NaCl`
D. `LiCI lt NaCl lt BeCl_2`

Answer

B

Explanation

`"Charge"//"radius"` ratio order: `Na^(o+) lt Li^(o+) lt Be^(2+)`
Polarising ability: `Na^(o+) lt Li^(o+) lt Be^(2+)`
Covalent character: `NaCl lt LiCl lt BeCl_2`