Which among the following has the highest pH? | vedclass

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

Question

(A) For an aqueous solution,the $pH$ scale ranges from $0$ to $14$. Acidic solutions have $pH < 7$,neutral solutions have $pH = 7$,and basic solutions

Vedclass · Accepted Answer

$1 \ M \ NaOH$

Vedclass · Answer

(A) For an aqueous solution,the $pH$ scale ranges from $0$ to $14$. Acidic solutions have $pH  7$.Among the given options,$H_2SO_4$ and $HCl$ are strong acids,while $NaOH$ is a strong base. Therefore,the basic solutions will have a higher $pH$ than the acidic solutions.Comparing the two basic solutions ($1 \ M \ NaOH$ and $0.1 \ M \ NaOH$):For $1 \ M \ NaOH$: $[OH^-] = 1 \ M$. Thus,$pOH = -\log(1) = 0$. Since $pH + pOH = 14$,$pH = 14 - 0 = 14$.For $0.1 \ M \ NaOH$: $[OH^-] = 0.1 \ M$. Thus,$pOH = -\log(0.1) = 1$. Since $pH + pOH = 14$,$pH = 14 - 1 = 13$.Comparing the values,$1 \ M \ NaOH$ has the highest $pH$.

Which among the following has the highest $pH$?

Similar Questions

$1.825 \ g$ of $HCl$ is dissolved in $5 \ L$ of water. What are the concentrations of $H^+$ and $OH^-$ ions?

Which of the following solutions has the highest $pH = 14$?

If $pH$ of $A$,$B$,$C$ and $D$ are $9.5$,$2.5$,$3.5$ and $5.5$ respectively,then the strongest acid is

The number of moles of $Ca(OH)_2$ required to prepare $250 \ mL$ of solution with $pH$ $14$ (assuming complete ionization) is :-

An analyst wants to convert $1 \ L$ of $HCl$ solution with $pH = 1$ to a solution of $HCl$ with $pH = 2$. The volume of water needed to do this dilution is $...... \ mL$. (Nearest Integer)

Vedclass Test Series

Exam Paper Generator

Online Exam Module