2013 - JAMB Chemistry Past Questions and Answers - page 5
41
A
A
B
B
C
C
D
D
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42
A
A
B
B
C
C
D
D
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43
A
alkanone
B
alkanoate
C
alkanal
D
akanol
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44
How many unpaired electron are in the p-orbitals of a fluorine atom?
A
3
B
\( 0 \)
C
1
D
2
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45
The radioactive emission with the least ionization power is
A
\( \alpha - particles \)
B
X-rays
C
\( \gamma -rays \)
D
\( \beta - rays \)
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46
Zn(s) + CuSO4(aq) \( \to \) ZnSO4(aq) + Cu(s)
In the reaction above, the oxidizing agent is
In the reaction above, the oxidizing agent is
A
CuSO4(aq)
B
ZnSO4(aq)
C
Cu(s)
D
Zn(s)
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47
2SO2(g) + O2(g) \( \iff \)2SO3(g)
\( \bigtriangleup H = -395.7kJmol^{-1} \)
In the reaction above, the concentration of 2SO3(g) can be in creased by
\( \bigtriangleup H = -395.7kJmol^{-1} \)
In the reaction above, the concentration of 2SO3(g) can be in creased by
A
decreasing the pressure
B
decreasing the temperature
C
the addition of catalyst
D
increasing the temperature
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