Question 4
WAEC
•
2022
•
CHEMISTRY
•
essay
Question Parts
(
a(i)
)
State two conditions used in the Haber process.
(
a(ii)
)
Explain briefly the effect of increasing the pressure on the rate of reaction in the Haber process.
(
b(i)
)
A mixture of nitrogen (IV) oxide and oxygen is bubbled into warm water to produce trioxonitrate (V) oxide, write a balanced chemical equation for the reaction.
(
b(ii)
)
Using a balanced chemical equation only, explain what would happen if nitrogen (IV) oxide is bubbled into warm water.
(
b(iii)
)
Compare the gases evolved when trioxonitrate (V) acid decomposes under each of the following properties: (I) pH; (II) Solubility in water, (III) Reaction with carbon (II) oxide.
(
c(i)
)
Name two oxides of sulphur.
(
c(ii)
)
Write a balanced equation for the reaction between each of the named oxides in 4c(i) and water.
(
d
)
Name one calcium compound: (i) used to dry ammonia gas; (ii) used in the manufacture of cement; (iii) that causes hardness in water; (iv) referred to as plaster of paris.
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About This Question
This is
Waec
2022
Chemistry
Question 4.
It is one of the
essay
questions from the
2022
Waec
Chemistry
examination.
The question covers
General
.