To obtain pure carbon(ii)oxide from its mixture with carbon(iv)oxide, the mixture should be?

  • A Passed over heated copper(ii)oxide
  • B Bubbled through water
  • C Bubbled through conc H\(_2\)SO\(_4\)
  • D Bubbled through conc NAOH
jamb 2020chemistry

The correct answer is D. Bubbled through conc NAOH

carbon(ii)oxide is prepared from carbon(iv)oxide by passing the latter through red-hot carbon and the unchanged CO\(_2\) is removed when the mixture of the gases through conc NAOH.

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