(C) $HCl$ is a strong acid that undergoes complete dissociation in water: $HCl(aq) + H_2O(l) \rightarrow H_3O^+(aq) + Cl^-(aq)$.Since it is a strong a

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(C) $HCl$ is a strong acid that undergoes complete dissociation in water: $HCl(aq) + H_2O(l) \rightarrow H_3O^+(aq) + Cl^-(aq)$.Since it is a strong acid,it provides the highest concentration of hydronium ions $(H_3O^+)$ compared to the other options,which are either weak acids,salts,or bases.

Class 11 Chemistry 6-2.Equilibrium-II (Ionic Equilibrium)Acids and Bases

Medium

Which of the following $0.1 \ M$ solution will contain the largest concentration of hydronium ions?

A
$NaHCO_3$
B
$NH_4Cl$
C
$HCl$
D
$NH_3$

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Chapter

6-2.Equilibrium-II (Ionic Equilibrium)

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Acids and Bases

The conjugate base of $NH_4^{+}$ is

EasyAP EAMCET 2022

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The conjugate base of $HPO_4^{2-}$ is .....

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Which of the following is the most basic?

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The conjugate base of $H_2PO_4^-$ is

MediumAIEEE 2004

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Weak acids are partially ionised in aqueous solutions. The ionisation constants of some acids are given below. Arrange these acids in increasing order of their acid strength.
Acid Index Acid Name and Ionisation Constant $(K_a)$
$1$ Formic acid $(HCOOH)$: $1.8 \times 10^{-4}$
$2$ Hypochlorous acid $(HClO)$: $3.0 \times 10^{-8}$
$3$ Nitrous acid $(HNO_2)$: $4.5 \times 10^{-4}$
$4$ Hydrocyanic acid $(HCN)$: $4.9 \times 10^{-10}$

Acid Index	Acid Name and Ionisation Constant $(K_a)$
$1$	Formic acid $(HCOOH)$: $1.8 \times 10^{-4}$
$2$	Hypochlorous acid $(HClO)$: $3.0 \times 10^{-8}$
$3$	Nitrous acid $(HNO_2)$: $4.5 \times 10^{-4}$
$4$	Hydrocyanic acid $(HCN)$: $4.9 \times 10^{-10}$

MediumAP EAMCET 2020

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