Question

Identify the Arrhenius acids among the following:

1. NaCl 2. HCl 3. $Cu(OH{)}_2$ 4. NaOH

5. $H_{2}S{O}_4$ 6. $HN{O}_3$ 7. KOH

• A. 1,2 and 5 are acids
• B. 2,3 and 5 are acids
• C. 4,6 and 7 are acids
• D. 2,5 and 6 are acids

Answer 1

The correct option is D

2,5 and 6 are acids

Arrhenius acids releases $H^{+}$ whereas Arrhenius bases releases $O{H}^{-}$ ions when dissolved in water.

Among the given chemicals, $HCl,H_{2}S{O}_4$ and $HN{O}_3$ are Arrhenius acids. $Cu(OH{)}_2,NaOH$, $KOH$ are Arrhenius bases and $NaCl$ is a salt.
Hence, correct answer is option d.