The following equations represent redox reactions EXCEPT
Ba2+(aq) + SO2-4 (aq) → BaSO4(s)
Cl2(g) + 2Br- (aq) → 2CI - (aq) + Br2(g)
Fe2+(aq) + ½ C I2(aq) → Fe3+ (aq) + CI-(aq)
2Fe3+(aq) + Sn2+(aq) → 2Fe2+(aq) Sn4+ (aq)
Zn(s) + CU2+(aq) → Zn2+(aq) + CU(s)
Correct answer is A
No explanation has been provided for this answer.
0.28
0.56
2.24
5.6
11.2
Correct answer is B
No explanation has been provided for this answer.
Brain tumors can be located by using an isotope of
carbon - 14
iodine 131
technetium 99
uranium235
uranium 238
Correct answer is C
No explanation has been provided for this answer.
During the extraction of iron in the blast furnance, slag is produced using
carbon
carbon
limestone
oxygen
sulphur
Correct answer is C
No explanation has been provided for this answer.
X = - log10 H+]
What does X stand for in the expression above?
Degree of acidity
Enthalpy change
Equilibrium constant
Ionic product of water
Solubility product
Correct answer is A
No explanation has been provided for this answer.
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