Which of the following processes is/are application(s) of neutralization?
(1) Using scrubbers to remove sulphur dioxide from flue gas in a power station.
(2) Using catalytic converters to remove nitrogen oxides in car exhaust.
(3) Using sodium hydroxide solution to remove copper(II) ions in industrial waste water.
A. (1) only
B. (2) only
C. (1) and (3) only
D. (2) and (3) only
CE Chem
2010-04-06 11:49 pm
回答 (2)
2010-04-07 1:19 am
✔ 最佳答案
A(1) Using scrubbers to remove sulphur dioxide from flue gas in a power station.
CaO + SO2 → CaSO3
∵CaO is a base and SO2 is an acidic gas.
∴The reaction is neutralization.
(2) Using catalytic converters to remove nitrogen oxides in car exhaust.
2CO + 2NO → 2CO2 + N2
The reaction doesn't involve a base or an acid.
It is actually a redox reaction.
(3) Using sodium hydroxide solution to remove copper(II) ions in industrial waste water.
Cu2+ + 2OH- →Cu(OH)2
The reaction doesn't involve a base or an acid.
It is actually a precipitation.
2010-04-07 1:13 am
A
scrubber neutralize souphure dioxide (acidic gas)
reaction of (2) :
2NO--> N2 + O2
with catalyst of platinum
i don't know how sodium hydroxide remove copper (II), but the reaction does not involve hydrongen ion or acidic anhydride, so it is not neutralization
scrubber neutralize souphure dioxide (acidic gas)
reaction of (2) :
2NO--> N2 + O2
with catalyst of platinum
i don't know how sodium hydroxide remove copper (II), but the reaction does not involve hydrongen ion or acidic anhydride, so it is not neutralization
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