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941
Which of the following statements about fine chemical is correct? It
A.
is injurious to health
B.
has low degree of purity
C.
is produced in relatively small amount
D.
can be stored for a long time
View Answer & Discuss
WAEC 2013
942
Which of the following materials is classified as a non-biodegradable pollutant?
A.
Animal hide
B.
Paper
C.
Plastic
D.
Wood
View Answer & Discuss (2)
WAEC 2013
943
Bronze is a mixture of
A.
Cu and Mg
B.
Cu and Sn
C.
Cu and Zn
D.
Cu and Pb
View Answer & Discuss (3)
WAEC 2013
944
Which of the following statements about thermoplastic material is correct? They
A.
do not melt on heating
B.
harden on heating
C.
decompose on heating
D.
soften and melt on heating
View Answer & Discuss
WAEC 2013
945
The number of orbitals in a p-sub level of an atom is
A.
2
B.
3
C.
5
D.
6
View Answer & Discuss (7)
WAEC 2012
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