Question

Which substance can be classified as an Arrhenius Acid?

Answer 1

Answer:

B

Explanation:

An Arrhenius Acid is a substance that dissociates in water to form Hydrogen (H⁺) ions.

Let's write the dissociation reactions of each of the options :

⇒ KF = K⁺ + F⁻

⇒ HF = H⁺ + F⁻

⇒ KOH = K⁺ + OH⁻

⇒ LiH = Li⁺ + H⁻

Only HF forms a Hydrogen ion on dissociation, hence it is the Arrhenius Acid.

Answer 2

Answer:

HF

Explanation:

Arrhenius acids are the substances that when dissolved in water are capable to give an H+ ion

Here

HF on dissolving into water releases H+ and F- ion so it's a Arrhenius acid

Option B