The chemical formula of white vitriol is:-
(a)- \[CuS{{O}_{4}}.5{{H}_{2}}O\]
(b)- \[ZnS{{O}_{4}}.7{{H}_{2}}O\]
(c)- \[FeS{{O}_{4}}.7{{H}_{2}}O\]
(d)- \[MgS{{O}_{4}}.7{{H}_{2}}O\]

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Hint: White Vitriol is the compound of the element which belongs to group 12 that is a d-block element. It has water molecules and it has a heptahydrate form.

Complete step by step answer:
White vitriol is the compound of the element of d-block. It is the compound of zinc (Zn).
It is chemically known as zinc sulfate or it is also known as zincate.
The chemical formula of White vitriol is \[ZnS{{O}_{4}}.7{{H}_{2}}O\]
When it is in the monohydrate form, it has a molecular mass 179.47 g/mol
In heptahydrate form, it has molecular mass 287.53 g/mol
White vitriol, when it has no water molecules then it is a crystalline solid or it is a white powder.
It can be soluble in water and alcohol.
The anhydrous Zincate or the heptahydrate zinc sulfate is a crystalline solid that is colorless.
Its boiling point is very high, that’s why it is a non-combustible compound.
1. The density of the compound is 3.54 gram per centimeter cube.
2. The melting point of the White vitriol is \[{{680}^{\circ }}C\]
3. The boiling point of the White vitriol is \[{{740}^{\circ }}C\]
4. The structure of White Vitriol is:

1. It is an important compound that is widely used in the production of rayon fabric.
2. It is also used as fertilizers for plants.
3. Since zinc is an important element that is required in our body hence it can be used in our diet. But if you consume a larger amount it would lead to nausea and vomiting.
4. It is used as eye drops.

You may get confused between option (b) and (c) because both of them belong to the d-block group and both of them have 7 molecules of water. Both the hydrated and non-hydrated form of zinc sulfate is called White Vitriol.
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