A) Electrodispersion method
B) Peptization
C) Double decomposition
D) Hydrolysis]
Correct Answer: C
Solution :
Arsenious sulphide can be prepared by double decomposition \[A{{s}_{2}}{{O}_{3}}+3{{H}_{2}}S\to A{{s}_{2}}{{S}_{3}}+3{{H}_{2}}O\]
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