1.

A 100mL solution containing 0.4 M As_(2)S_(3), 5M NaOH and 6M H_(2)O_(2) are reacted to form AsO_(4)^(3)" and "SO_(4)^(2-) as product. What may be the correct coefficient of As_(2)S_(3),H_(2)O_(2) and NaOH respectively in a balanced reaction?

Answer»

1,14,12
1,12,14
1,28,20
1,28,18

Answer :a


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