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1491
Which of the following relationships between the pressure P, the volume V and the temperature T, represents an ideal gas behaviour?
A.
P \(\alpha\) VT
B.
P \(\alpha\) T/V
C.
PT \(\alpha\) V
D.
PV \(\alpha\) I/T
E.
P \(\alpha\) V/T
View Answer & Discuss (6)
JAMB 1983
1492
The colour imparted to a flame by calcuium ion is
A.
green
B.
blue
C.
brick-red
D.
yellow
E.
lilac
View Answer & Discuss
JAMB 1983
1493
In the reaction M + N P;∆H = + QKJ. Which of the following would increase the concentration of the product?
A.
Decreaseing the concentration of N
B.
Increasing the concentration of P
C.
Adding a suitable catalyst
D.
Decreasing the temperature
E.
Increasing the temperature
View Answer & Discuss (6)
JAMB 1983
1494
In which of the following processes is iron being oxidized?
1 Fe + H
2
SO
4
→ FeSO
4
+H
2
2 FeSO
4
+ H
2
S → FeS + H
2
SO
4
3 2FeCI
2
+ Cl
2
→ 2FeCl
3
4 2FeCl
3
+ SnCl
2
+ → 2FeCl
2
+ SnCl
4
A.
1 only
B.
2 only
C.
3 only
D.
1 and 3
E.
2 and 4
View Answer & Discuss (12)
JAMB 1983
1495
In the reaction Fe + Cu
2+
\(\to\) Fe
2+
+ Cu,iron displaces copper ions to from copper. This is due to the fact that
A.
irn is in the metallic from while the copper is in the ionic from
B.
the atomic weight of copper is greater than that of iron
C.
copper is greater than iron
D.
copper metal has more electrons than iron metal
E.
iron is higher in the electrochemical series than copper
View Answer & Discuss (2)
JAMB 1983
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