Question 1
WAEC
•
2022
•
CHEMISTRY
•
essay
Question Parts
(
a(i)
)
Define an acid according to the Lewis concept.
(
a(ii)
)
Give one example of a Lewis acid.
(
b
)
Explain salting out in soap preparation.
(
c
)
State the reagent and condition necessary for the following conversion: \[ \mathrm{H}-\mathrm{C} \equiv \mathrm{C}-\mathrm{H} \rightarrow \mathrm{Ag}-\mathrm{C} \equiv \mathrm{C}-\mathrm{Ag} \]
(
d
)
What is the percentage abundance of an isotope?
(
e(i)
)
Why does the element with atomic number 18 not have an oxide?
(
e(ii)
)
Explain why chlorine (I) oxide has a low melting point.
(
f
)
Describe a test to distinguish between concentrated \( \mathrm{HNO}_{3} \) and concentrated \( \mathrm{H}_{2} \mathrm{SO}_{4} \).
(
g
)
State two differences between an electrochemical cell and an electrolytic cell.
(
h
)
How does the trend in ionization energy affect the reactivity of group 1 elements?
(
i
)
Define the term molecular formula.
(
j(i)
)
State which of the gases \( \mathrm{H}_{2} \) and \( \mathrm{NH}_{3} \) would deviate more from ideal behaviour.
(
j(ii)
)
Give reasons for the answer stated in 1(j)(i).
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About This Question
This is
Waec
2022
Chemistry
Question 1.
It is one of the
essay
questions from the
2022
Waec
Chemistry
examination.
The question covers
General
.