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Standard XII
Chemistry
Oxyacids Of Sulphur
Question

The molecular formula of H2S2O2 represents which oxoacid among the following?
  1. Hydrosulphurous acid
  2. Thiosulphurous acid
  3. Sulphuric acid
  4. Pyrosolphurous acid

A
Sulphuric acid
B
Hydrosulphurous acid
C
Thiosulphurous acid
D
Pyrosolphurous acid
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Solution
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H2S2O2 represents thiosulphurous acid in which one S=S is present.

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