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Jamb Chemistry 2004 Past Questions and Answers

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Jamb 2004 Chemistry Past Questions

Question 21:


What volume of 0.5 mol dm-3 H2SO4 will exactly neutralize 20cm3 of 0.1 mol dm-3 NaOH solution?

A. 2.0 cm3
B. 5.0 cm3
C. 6.8 cm3
D. 8.3 cm3

View Answer & Explanation

Question 22:


The oxidation state of chlorine in HClO4 is

A. -5
B. -1
C. +1
D. +7

View Answer & Explanation

Question 23:


ZnO(s) + CO(g) → Zn(s) + CO2(g)
In the reaction above, Zinc has been

A. Decomposed
B. Displaced
C. Oxidized
D. Reduced

View Answer & Explanation

Question 24:


Which of the following acts as both reducing and oxidized agent?

A. H2
B. SO2
C. H2S
D. CO2

View Answer & Explanation

Question 25:


In the electrolysis of brine, the anode is

A. Platinum
B. Copper
C. Zinc
D. Carbon

View Answer & Explanation



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