Chemistry - Study Mode

[#811] Copper is refined by
Correct Answer

(A) Roasting

Explanation

Solution: Copper is refined by roasting.

[#812] Froth floatation process to concentrate the minerals is applicable to
Correct Answer

(B) Chalcopyrites

Explanation

Solution: Froth floatation process to concentrate the minerals is applicable to Chalcopyrites.

[#813] Chemical name of Gammaxane is
Correct Answer

(D) Benzene hexachloride

[#814] Epsom salt is used
Correct Answer

(A) As purgative

Explanation

Solution: Epsom salt is used as purgative.

[#815] The metal extracted from Bauxite is :
Correct Answer

(D) Aluminium

Explanation

Solution: Aluminium ore is called bauxite . The bauxite is purified to produce aluminium oxide, a white powder from which aluminium can be extracted.