Jamb Chemistry 2001 Past Questions and Answers

Question 46:

• JAMB 2001

C₁₂H₂₂O_11(s) + H₂SO_4(aq) 12C_(s) + 11H₂O_(l) + H₂SO_4(aq)
In the reaction above, tetraoxosulphate (VI) acid function as

A. A dehydrate agent
B. An oxidizing agent
C. A reducing agent
D. A catalyst

Question 47:

• JAMB 2001

When sodium reacts with water, the resulting solution is

A. Weakly acidic
B. Neutral
C. Acidic
D. Alkaline

Question 48:

• JAMB 2001

Which of the following gases contains the least number of atoms at s.t.p?

A. 1 mole of butane
B. 3 mole of ozone
C. 4 mole of chlorine
D. 7 mole of argon

Question 49:

• JAMB 2001

Use the graph above to answer this question.If the gas is cooled, at what temperature will it start to condense?

A. 125 ^oC
B. 150^oC
C. 175^oC
D. 250^oC

Question 50:

• JAMB 2001

Use the graph above to answer this question.How long does it take all the solid to melt?`

A. 2.5 mins
B. 6.0 mins
C. 1.0 min
D. 3.0 mins