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Chemistry 1987 JAMB Past Questions

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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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31
An element Z, contained 90% of 168Z and 10% of Z1818 its relative atomic mass is?
  • A. 16.0
  • B. 16.2
  • C. 17.0
  • D. 17.8
View Answer & Discuss (4) JAMB 1987
32

Use the option above to answer this question. Which is the correct set of results for tests conducted respectively on fresh lime juice and ethanol.

  • A. A
  • B. B
  • C. C
  • D. D
View Answer & Discuss (11) JAMB 1987
33

The times taken for iodine to be liberated in the reaction between sodium thiosulphate and hydrochloric acid at various temperature are as follows. These results suggest that

  • A. for a 10o rise in temperature, rate of reaction is double
  • B. for a 10 o rise in temperature, rate of reaction is halved
  • C. time taken for iodine to appear does not depend on temperature
  • D. for a 10 o rise in temperature rate of reaction is tripled
View Answer & Discuss (18) JAMB 1987
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
NECO offline past questions - All questions, answers & explanations in one app 25712
Project Topics and Materials, Post-UTME past questions - Download now or upload yours to get paid
34

Use the option above to answer this question. The structure of benzoic acid is

  • A. A
  • B. B
  • C. C
  • D. D
View Answer & Discuss (6) JAMB 1987
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Project Topics and Materials, Post-UTME past questions - Download now or upload yours to get paid
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts