A strong acid is an acid that ionises completely to produce a high concentration of hydrogen ions.

A strong acid is an acid that ionises in water to produce hydrogen ions.

A strong acid is an acid that ionises completely in water to produce a high concentration of hydrogen ions.

Ammonia

Methylamine

Calcium Hydroxide

None of the above

A weak alkali is an alkali that ionises in water to produce low concentration of hydrogen ions.

A weak alkali is an alkali that ionises in water to produce hydroxide ions.

A weak alkali is an alkali that ionises in water to produce low concentration of hydroxide ions.

A weak alkali is an alkali that ionises partially in water to produce a low concentration of hydroxide ions.

Ethanoic acid is a diprotic acid, whereas hydrochloric acid is in the molecular form.

Ethanoic acid is a diprotic acid, whereas hydrochloric acid is a monoprotic acid.

Ethanoic acid dissociates partially, whereas hydrochloric acid dissociates completely in water

Ethanoic acid is a strong acid whereas hydrochloric acid is a weak acid.

A weak alkali is an alkali that ionizes / dissociates partially in water to produce a low concentration of hydroxide ions.

Weak alkalis has pH value of 14.

Weak alkalis has a low concentration of hydroxide ions.

Weak alkalis has low degree of ionization / dissociation.

$$2Ba\left(OH\right)_2\ \longrightarrow\ Ba^{2+}+\ 2OH^-$$

$$Ba\left(OH\right)_2\ \longrightarrow\ Ba^{2+}+\ OH^-$$

$$Ba\left(OH\right)_2\ \longleftrightarrow\ Ba^{2+}+\ OH^-$$

high degree of ionization / dissociation.

low degree of ionization / dissociation.

medium degree of ionization / dissociation.

zero degree of ionization / dissociation.