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Mohr's salt is :...

Mohr's salt is :

A

`FeSO_4. (NH_4)_2SO_4. 6H_2O `

B

`FeSO_4. Al_2(SO_4)_3. 24H_2O`

C

`Fe_2(SO_4)_3(NH_4)_2SO_4. 6H_2O`

D

`K_2SO_4. Al_2(SO_4)_3 24H_2O`.

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The correct Answer is:
A
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