Which property can be used to distinguish talc from gypsum?
gypsum has a soapy feel.

talc has a soapy feel.

gypsum can scratch glass.

talc fizzes with hydrochloric acid.

B. Talc has soapy feel.

Explanation:

Gypsum is a hydrated calcium sulphate mineral .

The chemical formula of gypsum is

It consist of calcium, sulphur, oxygen and hydrogen.

It is soft sulphate mineral. It is used in plaster  formation. It is used  in blackboard chalk formation.It is used as a fertilizer.It Talc can not  scratch gypsum  because it is harder than talc.It has no soapy feel.

Talc is hydrous magnesium silicate mineral . It is usually green ,gray, white , brown or colourless.It is a translucent mineral . It has pearly luster.

It is soften known mineral. The chemical formula of talc is .It consist of magnesium, silicon, oxygen and hydrogen.It has extreme softness and greasy. It has soapy feel. Gypsum is harder than talc and more difficult to scratch.

Hence, the option B is true.

B. Talc has soapy feel.

b is the correct