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Question: Answered & Verified by Expert

A sample of air which is free from CO2, is used to heat Na metal at 350°C to form X. X has the property to absorb CO2 and form Y. Identify "X" and "Y" respectively:

Chemistrys Block ElementsNEET
Options:
  • A Na2O and O2
  • B Na2Oand O2
  • C NaO2 and O2
  • D Na2O2and O3
Solution:
2147 Upvotes Verified Answer
The correct answer is: Na2Oand O2
Sodium is heated in 
2Na+O2(air)Na2O2(X)
2CO2+2Na2O22Na2CO3+O2(Y)

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