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AP EAMCET2005Chemistrys Block Elements

Sodium is heated in air at 300^ C to form X . X absorbs CO ₂ and forms Na ₂ CO ₃ and Y . Which of the following is Y ?

Options

  1. AH ₂
  2. BO ₂
  3. CH ₂ O ₂
  4. DO ₃

Correct answer

B. O ₂

Step-by-step solution

The reaction is as follows gathered 2 Na + O ₂ 300^ C sodium peroxide ( X ) Na ₂ O ₂ 2 Na ₂ O ₂+2 CO ₂ 2 Na ₂ CO ₃+ O ₂ gathered (Y) Sodium peroxide is used in the purification of air in submarines because it combines. with CO ₂ to give O ₂ .

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