Question

A second name for ferrous ammonium sulphate (F.A.S.) is

a. Rochelle salt
b. Mohr's salt c.Common salt d. sea salt ​

Answer 1

Answer:

B.Its Mhor Salt. Ferrus is derrived from Greek language which means Iron

Explanation:

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Answer 2

Answer:

The second name of ferrous ammonium sulphate is Mohr's salt.

Therefore, the option (b) is correct.

Explanation:

• The ferrous ammonium sulphate is also known as Mohr's salt. It is named Mohr's salt after the name of German scientist "Karl Friedrich Mohr".

• Chemical formula of Mohr salt is  written as (NH₄)₂Fe(SO₄)₂(H₂O)₆. It is a double salt because it contains two different cation Fe²⁺ and NH₄⁺.
• In the preparation of Mohr's Salt includes dissolution of hydrated ferrous sulfate and ferrous ammonium sulfate in H₂O, which contains a average amount of sulfuric acid. The resultant solution went through a crystallization to give radiant green Mohr's Salt crystal.

• Rachelle's salt is a double sat of tartaric acid having chemical formula KNaC₄H₄O₆.4H₂O.
• Sodium chloride is known as common salt. Th chemical formula of common salt is written as NaCl.