The correct sequence of increasing covalent character is represented byA LiCl < NaCl < BeCl2 B BeCl2 < LiCl < NaCl C NaCl < LiCl < BeCl2 D BeCl2 < NaCl < LiCl

The covalent character of a compound is determined by the difference in electronegativity between the two atoms forming the bond. The greater the difference in electronegativity, the more ionic the bond is. Conversely, the smaller the difference in electronegativity, the more covalent the bond is.

1. Determine the electronegativity of each atom in the compounds. The electronegativity values are as follows: Li (1.0), Na (0.9), Be (1.5), Cl (3.0).

2. Calculate the difference in electronegativity for each compound. The differences are as follows: LiCl (2.0), NaCl (2.1), BeCl2 (1.5).

3. Rank the compounds in order of increasing covalent character, which corresponds to decreasing difference in electronegativity. The correct sequence is NaCl < LiCl < BeCl2.

Therefore, the correct answer is option A: LiCl < NaCl < BeCl2.