The salt that reacts with dilute hydrochloric acid to produce a pungent smelling gas which decolourizes acidified purple potassium tetraoxomanganate (VII) solution is

  • A Na\(_2\)SO\(_4\)
  • B Na\(_2\)SO\(_3\)
  • C Na\(_2\)S
  • D Na\(_2\)CO\(_3\)

The correct answer is B. Na\(_2\)SO\(_3\)

No explanation given
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