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[ Post UTME Begins ]:
View The List Of Schools That Have Released 2026 Post-UTME Forms.
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Matter and Separation Techniques
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BASIC CHEMISTRY
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chemical symbols, formulae, equations and their uses
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Introduction to the tetravalency of carbon
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Aromatic hydrocarbons e.g. benzene - structure, properties and uses
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3126
The following transition metal ions would be coloured in aqueous solution except________?
A.
Cr
3+
B.
Fe
3+
C.
Mn
3+
D.
Sc
3+
View Answer & Discuss (2)
WAEC 2015
3127
The gas given off when ethanol reacts with sodium is
A.
Carbon(IV)oxide
B.
Hydrogen
C.
Methane
D.
Oxygen
View Answer & Discuss (3)
WAEC 2015
3128
Which of the following halogens is solid at room temperature?
A.
Bromine
B.
Chlorine
C.
Flourine
D.
Iodine
View Answer & Discuss (1)
WAEC 2015
3129
The alkaline earth metals have similar chemical properties because________?
A.
They are in the same period
B.
Their salts are colourless
C.
They have the same number of valence electrons
D.
They are very reactive
View Answer & Discuss (1)
WAEC 2015
3130
The number of unpaired electrons in an atom of an element
8
Q is _______?
A.
2
B.
4
C.
6
D.
8
View Answer & Discuss (2)
WAEC 2015
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