Which of the following statements regarding p | vedclass

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

Question

(B) $1$. The $pH$ of neutral water at $25^{\circ}C$ is $7$,not $0$. Thus,option $A$ is correct.$2$. $CH_3COOH$ is a weak acid and $NaOH$ is a strong b

Vedclass · Accepted Answer

The $pH$ of a mixture of $1 \, N \, CH_3COOH$ and $1 \, N \, NaOH$ is $7$.

Vedclass · Answer

(B) $1$. The $pH$ of neutral water at $25^{\circ}C$ is $7$,not $0$. Thus,option $A$ is correct.$2$. $CH_3COOH$ is a weak acid and $NaOH$ is a strong base. Their mixture ($1 \, N$ each) forms $CH_3COONa$,which undergoes anionic hydrolysis. The resulting solution is basic,so the $pH$ will be greater than $7$,not $7$. Thus,option $B$ is incorrect.$3$. $NaCN$ is a salt of a weak acid $(HCN)$ and a strong base $(NaOH)$. It undergoes hydrolysis to form a basic solution,so $pH > 7$. Thus,option $C$ is correct.$4$. Both $CH_3COOH$ and $HCl$ are acids. Their mixture will be acidic,so $pH < 7$. Thus,option $D$ is correct.

Which of the following statements regarding $pH$ and $[H^+]$ is incorrect?

Similar Questions

The dissociation constants for acetic acid and $HCN$ at $25\,^{\circ}C$ are $1.5 \times 10^{-5}$ and $4.5 \times 10^{-10}$ respectively. The equilibrium constant for the equilibrium $CN^{-} + CH_3COOH \rightleftharpoons HCN + CH_3COO^{-}$ would be

$A$ sample of $Na_2CO_3 \cdot H_2O$ weighing $0.62 \ g$ is added to $100 \ mL$ of $0.1 \ N \ (NH_4)_2SO_4$ solution. What will be the nature of the resulting solution?

$100 \ cm^3$ of $0.1 \ N \ HCl$ solution is mixed with $100 \ cm^3$ of $0.2 \ N \ NaOH$ solution. The resulting solution is

At $27^{\circ} C$,the degree of dissociation of $HA$ (weak acid) in $0.5 \ M$ of its solution is $1 \%$. The concentrations of $H_3O^{+}$,$A^{-}$,and $HA$ at equilibrium (in $mol \ L^{-1}$) are respectively

Which of the following absorbs oxygen rapidly?

Vedclass Test Series

Exam Paper Generator

Online Exam Module