In which of the following processes colloidal sulphur is formed

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In which of the following processes colloidal sulphur is formed

Chemistryp Block Elements (Group 15, 16, 17 & 18)NEET

Options:

A $F e C l_{2} + H_{2} S$
B $F e C l_{3} + H_{2} S$
C $H_{2} S O_{4} + H_{2} S_{2} O_{4}$
D $S O_{2} + C l_{2}$

Solution:

2817 Upvotes Verified Answer

The correct answer is:

F e C l_{3} + H_{2} S

colloidal sulphur is formed by the reaction of Ferric chloride and

H_{2} S

as follows

{2FeCl}_{3} + H_{2} S \to 2HCl + \underset{(Colloidal form)}{S}

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