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727

Q:

Which one of the following substance is used in photography and also as an antichlor ? 

  • 1
    Chrome red
  • 2
    Sodium thisosulphate
  • 3
    Hydrogen peroxide
  • 4
    Calomel
  • Show Answer
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Answer : 2. "Sodium thisosulphate "

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GK Chemistry General Knowledge Questions

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