Q. Ferrous Sulphate crystals are known as _______

A
Green Vitriol
B
Blue Vitriol
C
White Vitriol
D
None of these
Solution:

Ferrous sulphate denotes a range of salts. The hydrated form is used medically to treat iron deficiency, and also for industrial applications. Known since ancient times as copperas and as green vitriol, the blue-green heptahydrate is the most common form of this material.

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