The aqueous solution of the following salt wi | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) The $pH$ of the aqueous solution of these salts depends on the strength of the corresponding conjugate acid formed upon hydrolysis.When these salt

Vedclass · Accepted Answer

$NaClO_{4}$

Vedclass · Answer

(D) The $pH$ of the aqueous solution of these salts depends on the strength of the corresponding conjugate acid formed upon hydrolysis.When these salts react with water,they form $NaOH$ (a strong base) and the corresponding oxoacid of chlorine.The reactions are:$NaClO + H_{2}O \rightarrow NaOH + HClO$$NaClO_{2} + H_{2}O \rightarrow NaOH + HClO_{2}$$NaClO_{3} + H_{2}O \rightarrow NaOH + HClO_{3}$$NaClO_{4} + H_{2}O \rightarrow NaOH + HClO_{4}$Since $NaOH$ is common to all,the $pH$ is determined by the acidity of the resulting acid.$HClO_{4}$ is the strongest acid among the given options $(HClO Therefore,the solution of $NaClO_{4}$ will have the highest concentration of $H^{+}$ ions,resulting in the lowest $pH$ value.

The aqueous solution of the following salt will have the lowest $pH$:

Similar Questions

The degree of hydrolysis of which salt is independent of the concentration of the salt solution?

At $25 \ ^\circ C$,a weak acid $HX$ has the dissociation constant $K_a = 1 \times 10^{-5}$. It forms a salt $NaX$ on reaction with an alkali. The percentage of degree of hydrolysis of a $0.1 \ M$ solution of $NaX$ is $..... \%$.

Which of the following aqueous solutions will be most basic?

Consider the following aqueous solutions:
$(1)$ $FeCl_3$ is basic
$(2)$ $NH_4Cl$ is acidic
$(3)$ $NaCN$ is acidic
$(4)$ $Na_2CO_3$ is basic
Which of the following statements is $NOT$ correct?

If the value of $K_b$ is $10^{-5}$,find the $K_h$ value for a salt of (strong acid - weak base) at $363 \ K \ (90 \ ^\circ C)$. [At $90 \ ^\circ C, K_w = 10^{-12}$]

Vedclass Test Series

Exam Paper Generator

Online Exam Module