2001 - JAMB Chemistry Past Questions and Answers - page 5

The gas that can best be collected by downward displacement of air is

Which of the following metals burn with brick red flame?

Which of the following represent hybridization in ethyne?

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

When sodium reacts with water, the resulting solution is

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

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

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

The diagram above represents the formation of

Use the solubility curves below to answer questions. If 1 dm³ of a saturated solution of L at 60⁰C is cooled to 25⁰C, what amount in mole will separate out?