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[ Post UTME Begins ]:
View The List Of Schools That Have Released 2026 Post-UTME Forms.
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2226
When excess ethene is shaken with acidified KMnO
4
solution, the product obtained is
A.
ethane
B.
ethanal
C.
ethane - 1, 2 - diol
D.
ethanoic acid
View Answer & Discuss (2)
WAEC 2003
2227
What volume of 0.20 mol dm
-3
NaOH solution would yield 5.0 g of NaOH on evaporation to dryness? [NaOH = 40g mol
-1
]
A.
400 cm
3
B.
625 cm
3
C.
1000 cm
3
D.
1600 cm
3
View Answer & Discuss
WAEC 2003
2228
Which of the following compound is used for removing impurities from bauxite?
A.
NaOH
B.
CaCO
3
C.
Na
3
AIF
6
D.
H
2
SO
4
View Answer & Discuss
WAEC 2003
2229
What is the main impurity in haematite?
A.
CaSiO
3
B.
CaCO
3
C.
SiO
3
D.
Fe
2
O
3
View Answer & Discuss (3)
WAEC 2003
2230
When a sample of water was boiled, it lathered more readily with soap. it can be concluded that the sample most likely contained
A.
magnesium tetraoxosulphate (VI)
B.
suspended solids
C.
Organic impurities
D.
calcium hydrogentrioxocarbonate (IV)
View Answer & Discuss (1)
WAEC 2003
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