The chloride ion has a low surface density charge and does not attract water sufficiently strongly for it to hydrolyse. Hence, any reaction of a chloride with water depends upon the element attached to the chloride,

NaCl and MgCl2 are ionic and water soluble. Mg2+ has a higher surface density of charge than Na+ and hydrolysis occurs to a very small extent. Hence, the aqueous solution of MgCl2 is slightly acidic.

https://www.s-cool.co.uk/a-level/chemistry/periodicity/revise-it/reaction-of-period-iii-chlorides-with-water

Electrolytes are divided into strong and weak. Strong electrolytes dissociate completely in water into ions. Weak electrolytes do not completely dissociate. If water has the ability to form a weak electrolyte, then the salt undergoes hydrolysis, i.e. interacts with water. Almost all metal ions starting from the third group of the periodic table form a covalent bond with the hydroxyl group of water. Therefore, all the chlorides with an ionic bond, starting from the third group, react with water.

Yuri Mirgorod Thanks for your clarification.

I agree with Yuri Mirgorod comments. Most metal chlorides including alkali group (most common: NaCl, KCl, MgCl2), more covalent chlorides of metals, transition metals contains chloride, significantly react with water. Chloride ion (Cl-1) itself small ionic size and highly soluble in water and move very fast in water. Chloride increases the electrical conductivity of water and thus increases its corrosivity.

Deaar Dr. Jiban Podder. My comments are different from yours. Chlorides of the element first group do not react with water. These are strong electrolytes and they do not participate in the hydrolysis reaction. They dissolve in water and decompose into ions. Chlorine has the formula Cl2. You confuse chlorine with chlorine ion. The expert cannot make such mistakes. I advise you, if you are not competent in the question, then do not answer the question. This compromises you, your university, and misleading novice scientists. Please do not be offended by me. Look at my comments on your other answer

https://www.researchgate.net/post/What_is_the_difference_between_surface_charge_and_zeta_potential#view=5b8c084ef4d3ec4e14637d18

Regards.

Yuri.

Dear Yuri, that mistake is corrected and think it is acceptable.