pBlock ElementsII - Result Question 146

####34. Sodium thiosulphate is prepared by

(a) reducing Na2SO4 solution with H2S

(b) boiling Na2SO3 solution with S in alkaline medium

(c) neutralising H2S2O3 solution with NaOH

(d) boiling Na2SO3 solution with S in acidic medium

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Solution:

  1. Na2SO3+SΔOHNa2S2O3


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