A. Passed over heated copper(ii)oxide
B. Bubbled through water
C. Bubbled through conc H2SO4
D. Bubbled through conc NaOH

Correct Answer:

Option D = Bubbled through conc NaOH

Explanation

Carbon(ii)oxide is prepared from carbon(iv)oxide by passing the latter through red-hot carbon and the unchanged CO2 is removed when the mixture of the gases through conc NaOH.

Copyright warnings! Do not copy.

IJMBE Registration Closes Soon. Click Here To Learn More.