What will be the pH of the solution if BCl_3 | vedclass

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Question

(A) When $BCl_3$ is dissolved in water,it undergoes hydrolysis to form boric acid and hydrochloric acid according to the reaction: $BCl_3 + 3H_2O \rig

Vedclass · Accepted Answer

$pH < 7$

Vedclass · Answer

(A) When $BCl_3$ is dissolved in water,it undergoes hydrolysis to form boric acid and hydrochloric acid according to the reaction: $BCl_3 + 3H_2O \rightarrow H_3BO_3 + 3HCl$. $HCl$ is a strong acid that dissociates completely in water to produce $H^+$ ions,while $H_3BO_3$ is a very weak acid. The presence of $HCl$ makes the resulting solution acidic. Therefore,the $pH$ of the solution will be less than $7$ $(pH < 7)$.

What will be the $pH$ of the solution if $BCl_3$ is dissolved in water?

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