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2301
Determine the mass of copper deposited by 4.0 moles of electrons in the reaction represented by the equation below: Cu
2
(aq)
+ 2e
-
→ Cu
(s)
A.
32
B.
64
C.
128
D.
256
View Answer & Discuss (4)
WAEC 2005
2302
Reaction undergone by compounds with the general formula C
n
H
2n+2
include
A.
addition
B.
esterification
C.
substitution
D.
dehydration
View Answer & Discuss (2)
WAEC 2005
2303
What is the major product formed when C
2
H
5
OH reacts with CH
3
COOH?
A.
C
2
H
5
COOCH
3
B.
C
2
HCOCH
3
C.
CH
3
COOC
2
H
5
D.
C
3
H
7
COOH
View Answer & Discuss (2)
WAEC 2005
2304
Which of the following substances is a non-reducing sugar?
A.
Sucrose
B.
Glucose
C.
Fructose
D.
Maltose
View Answer & Discuss (4)
WAEC 2005
2305
The colour of the solution formed when ethyne reacts with an acidic solution of potassium tetraoxomanganate (VII) is
A.
purple
B.
colourless
C.
green
D.
pink
View Answer & Discuss (3)
WAEC 2005
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