An element of group 14 forms two oxides one of which is highly poisonous and neutral…

Chemistry · JEE Main · NTA Examsp-Block Elements

An element of group 14 forms two oxides one of which is highly poisonous and neutral. Other oxide can be easily liquefied and compressed to give a solid which is used as a refrigerant under the name of drikold. The element and the oxides are
  1. Si, SiO, SiO2
  2. Pb, PbO, PbO2
  3. C, CO, CO2
  4. Sn, SnO, SnO2

Answer

(C) C, CO, CO 2

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