a
dry ethene gas
b
remove carbon (iv) oxides from ethene
c
remove carbon (ii) oxide from ethene
d
remove sulphur (iv) oxide from ethene
Explanation
Correct Option
bVideo Explanation
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Discussions (11)

Oluebube2006
4 years ago
NaOH removes CO2 and SO2 buh from wat given, it is SO2 we're removing not CO2

MachineDex
7 years ago
The essential work of the NaOH sodium hydroxide in the second flask is to remove any gaseous impurities like CO2 and SO2 formed from a certain amount of oxidation by the gas. The correct answer is B. 





