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Chemistry Past Questions

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1631

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. 150oC
  • C. 175oC
  • D. 250oC
View Answer & Discuss (14) JAMB 2001
1632

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
View Answer & Discuss (6) JAMB 2001
1633

The diagram above represents the formation of

  • A. a metallic bond
  • B. an electrovalent bond
  • C. a covalent bond
  • D. a coordinate covalent bond
View Answer & Discuss (5) JAMB 2001
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1634

Use the solubility curves below to answer the question. If 1 dm\(^3\) of a saturated solution of L at 60\(^0\)C is cooled to 25\(^0\)C, what amount in mole will separate out?

  • A. 0.75
  • B. 0.25
  • C. 1.00
  • D. 0.50
View Answer & Discuss (21) JAMB 2001
1635

In the diagram above, the curve that represents the production of oxgyen gas from the decomposition of KCIO3 in the presence of MnO2 catalyst is

  • A. R
  • B. P
  • C. S
  • D. Q
View Answer & Discuss (16) JAMB 2002
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