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Chemistry UTME / JAMB 2013 Matter & Separation Techniques
2H2O (l) + 2F2(g) → 4HF(aq) + O2(g). In the reaction above, the substance that is being reduced is
A
O2(g)
B
H2O(l)
C
F2(g)
D
HF(aq)
medium Difficulty
Chemistry UTME / JAMB 2013 Matter & Separation Techniques
In an electrochemical cell, polarization is caused by
A
chlorine
B
oxygen
C
tetaoxsulphate (Vl) acid
D
hydrogen
medium Difficulty
Chemistry UTME / JAMB 2013 Kinetics, Energetics and Equilibrium
In an endothermic reaction, if there is a loss in entropy the reaction will
A
be indeterminate
B
be spontaneous
C
not be spontaneous
D
be at equilibrium
medium Difficulty
Chemistry UTME / JAMB 2013 Matter & Separation Techniques
the minimum amount of energy required for a reaction to take place is
A
lattice energy
B
ionization energy
C
activation energy
D
kinetic energy
medium Difficulty
Chemistry UTME / JAMB 2013 Matter & Separation Techniques
Which of the following compounds is a neutral oxide?
A
Carbon (IV) oxide
B
Sulphur (Vl) oixide
C
Sulphur (IV) oxide
D
Carbon (ll) oxide
medium Difficulty
Chemistry UTME / JAMB 2013 Matter & Separation Techniques
In the laboratory preparation of ammonia, the flask is placed in a slanting position so as to
A
prevent condensed water from breaking the reaction flask
B
enable the proper mixing of the reactions in the flask
C
enhance the speed of the reaction
D
prevent formation of precipitate
medium Difficulty
Chemistry UTME / JAMB 2013 Matter & Separation Techniques
Which of the gases is employed as an anaesthesia?
A
N 2O
B
NO2
C
NH3
D
NO
medium Difficulty
Chemistry UTME / JAMB 2013 Acids, Bases, and Salts
Sulphur (IV)oxide is a strong reducing agent in the presence of water due to the formation of
A
hydroxide ion
B
sulpgur (Vl)oxide
C
hydrogen sulhide
D
trioxosulphate (IV) salt
medium Difficulty
Chemistry UTME / JAMB 2013 Acids, Bases, and Salts
A metal that forms soluble trioxosulphate (IV) ion is
A
barium
B
potassium
C
manganese
D
aluminium
medium Difficulty
Chemistry UTME / JAMB 2013 Acids, Bases, and Salts
Copper is displaced from the solution of its salts by most metals because it
A
is a transition element
B
is at the bottom of the activity series
C
is very reactive
D
has completely filled 3d-orbitals
medium Difficulty
Chemistry UTME / JAMB 2013 Matter & Separation Techniques
A primary amide is generally represented by the formula
A
RCOOR
B
RCONH 2
C
RCONHR
D
RCONR 2
medium Difficulty
Chemistry UTME / JAMB 2013 Matter & Separation Techniques
Which of the following fraction is used as raw material for the cracking process?
A
kerosine
B
lubricating oil
C
bitumen
D
diesel oils
medium Difficulty
Chemistry UTME / JAMB 2013 Stoichiometry & Mole Concept
An organic compound contains 60% carbon, 13.3% hydrogen and 26.7% oxygen. Calculate the empirical formula rn(C=12,H =1, O=16)
A
C 5H 12O
B
C 3H 8O
C
C 6H 13O 2
D
C 4H 9O
medium Difficulty
Chemistry UTME / JAMB 2013 Matter & Separation Techniques
The coloured nature of transition metal ions are associated with their partially filled
A
f- orbital
B
s- orbital
C
p-orbital
D
d-orbital
medium Difficulty
Chemistry UTME / JAMB 2013 Acids, Bases, and Salts
Aluminium containers are frequently used to transport trioxonitrate (V) acid because aluminium
A
has a silvery-white appearance
B
has a low density
C
does not react with the acid
D
does not corrode
medium Difficulty
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