When arsenic sulphide is boiled with NaOH, sodium arsenite and sodium thioarsenite are formed according to reaction : x As2S3 + y NaOH → x Na3AsO3 + x Na3AsS3 + \frac{y}{2} H2O. What are the values of x and y?

Engineering

Chemistry

Balancing of Redox Reaction

Question

When arsenic sulphide is boiled with NaOH, sodium arsenite and sodium thioarsenite are formed according to reaction :

x As₂S₃ + y NaOH → x Na₃AsO₃ + x Na₃AsS₃ + $\frac{y}{2}$ H₂O. What are the values of x and y?

1, 4

2, 8

2, 6

1, 6

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On balancing Na atoms on both sides of reaction, we get :

y = 6x.

x : y = 1 : 6

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