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How to distingush between sodium sulphite and sodium sulphide using a chemical test?

Asked by dmondal 23rd December 2016, 8:49 PM
Answered by Expert
Answer:
With Sulphuric acid, sodium sulphide liberates H2S.
Na2S + H2SO4 --> Na2SO4 + H2S
 
With sulphuric acid, sodium sulphite liberates SO2 along with water.
Na2SO3 + H2SO4 -->Na2SO4 + H2O + SO2
Answered by Expert 24th December 2016, 9:47 PM
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