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1 markPaper 1 · Multiple choiceNon-Metals

CSEC Chemistry · January 2017 · Paper 1 · Question Q55

A formula of a gas with a distinctive colour is

  1. (A)\text{SO}_2
  2. (B)\text{NO}_2
  3. (C)\text{CO}_2
  4. (D)\text{NH}_3

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