(B) solution is basic if its $pH > 7$. The $pH$ is calculated using the formula $pH = -\log[H_{3}O^{+}]$. For option $A$: $pH = -\log(10^{-5}) = 5$ (A

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(B) solution is basic if its $pH > 7$. The $pH$ is calculated using the formula $pH = -\log[H_{3}O^{+}]$. For option $A$: $pH = -\log(10^{-5}) = 5$ (Acidic). For option $B$: $pH = -\log(10^{-12}) = 12$ (Basic). For option $C$: $pH = -\log(10^{-7}) = 7$ (Neutral). For option $D$: $pH = -\log(10^{-4}) = 4$ (Acidic). Since $12 > 7$,the solution with $[H_{3}O^{+}] = 10^{-12} \; M$ is basic.

Class 10 Science Acids, Bases and Salts Strength of Acids and Bases (pH Scale)

Easy

Which solution will be basic?

A
$[H_{3}O^{+}] = 10^{-5} \; M$
B
$[H_{3}O^{+}] = 10^{-12} \; M$
C
$[H_{3}O^{+}] = 10^{-7} \; M$
D
$[H_{3}O^{+}] = 10^{-4} \; M$

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Class 10

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Chapter

Acids, Bases and Salts

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Strength of Acids and Bases (pH Scale)

What is the $pOH$ value of a $10^{-4} \; M$ aqueous solution of $HCl$?

Easy

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Write true or false for the following statement:
The universal indicator shows the same colour at different concentrations of hydrogen ions in a solution.

Easy

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What happens to the $pH$ of a basic aqueous solution if the concentration of $[OH^-]$ ions increases?

Easy

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$(i)$ State the purpose of developing $pH$ scale.
$(ii)$ Mention the $pH$ range for acids.
$(iii)$ What is the $pH$ of acid rain and how it affects the aquatic life?

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If the concentration of hydronium ions in an aqueous solution is $[H_3O^+] = 10^{-5} \; M$,what is the $pOH$ of the solution?

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Which solution will be basic?

Similar Questions

What is the $pOH$ value of a $10^{-4} \; M$ aqueous solution of $HCl$?

Write true or false for the following statement:The universal indicator shows the same colour at different concentrations of hydrogen ions in a solution.

What happens to the $pH$ of a basic aqueous solution if the concentration of $[OH^-]$ ions increases?

$(i)$ State the purpose of developing $pH$ scale.$(ii)$ Mention the $pH$ range for acids.$(iii)$ What is the $pH$ of acid rain and how it affects the aquatic life?

If the concentration of hydronium ions in an aqueous solution is $[H_3O^+] = 10^{-5} \; M$,what is the $pOH$ of the solution?

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Write true or false for the following statement:
The universal indicator shows the same colour at different concentrations of hydrogen ions in a solution.

$(i)$ State the purpose of developing $pH$ scale.
$(ii)$ Mention the $pH$ range for acids.
$(iii)$ What is the $pH$ of acid rain and how it affects the aquatic life?