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[ Post UTME Begins ]:
View The List Of Schools That Have Released 2026 Post-UTME Forms.
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2721
Which of the following ions require the largest quantity of electricity for discharge at an electrode?
A.
2.0 mole of Q
3+
B.
2.5 mole of R
2+
C.
3.0 mole of T
-
D.
4.0 mole of Y
-
View Answer & Discuss (2)
WAEC 2002
2722
If two metallic ions of the same concentration migrate to a graphite cathode, the one that would be preferentially discharged is the one that has the
A.
smaller mass
B.
lower electrical charge
C.
greater stability in solution
D.
stronger tendency to accept electrons
View Answer & Discuss (3)
WAEC 2002
2723
When concentrated sodium chloride solution is electrolysed using inert electrodes, the products are
A.
oxygen and hydrogen
B.
hydrogen and chlorine
C.
sodium and oxygen
D.
sodium and chlorine
View Answer & Discuss (3)
WAEC 2002
2724
Which of the following processes takes place during the production of margarine from vegetable oils?
A.
Esterification
B.
Hydrolysis
C.
Hydrogenation
D.
Saponification
View Answer & Discuss (1)
WAEC 2002
2725
Which of the following compounds can be represented by the molecular formula C
2
H
6
O?
A.
Propanal
B.
Ethanol
C.
Methanoic acid
D.
Glucose
View Answer & Discuss (1)
WAEC 2002
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