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Question

For the preparation of sodium thiosulphate by Springs reaction, the reactants used are :
  1. Na2S+Na2SO3+I2
  2. Na2S+Na2SO3+Cl2
  3. Na2S+SO2
  4. Na2SO3+S

A
Na2S+Na2SO3+Cl2
B
Na2S+SO2
C
Na2S+Na2SO3+I2
D
Na2SO3+S
Solution
Verified by Toppr

Springs reaction for the preparation of sodium thiosulphate is given below:

Na2S+Na2SO3+I2Na2S2O3+2NaI

Hence, option C is correct.

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