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Chemistry Past Questions

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2896
The action of zinc on an acid produces
  • A. chlorine
  • B. hydrogen
  • C. nitrogen
  • D. sulphur
  • E. water vapour.
View Answer & Discuss NECO 2008
2897
A solution is prepared by dissolving I .96g of H2SO4 in 250 cm3 of its solution. What is the concentration in moles per dm3?
  • A. 0.008
  • B. 0.08
  • C. 0.1
  • D. 0.8
  • E. 8.02
View Answer & Discuss (4) NECO 2008
2898
Which of the following compounds is unsaturated?
  • A. Cyclohexane
  • B. Methoxyethane
  • C. 1 ,2-dibromoethane
  • D. 2,2,3-trimethylpentane
  • E. 3-methylbut-l-ene
View Answer & Discuss (2) NECO 2008
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2899
pH is define as
  • A. [H+]
  • B. –log [H]
  • C. –log [H+]
  • D. log [H]
  • E. log [H+]
View Answer & Discuss NECO 2008
2900
Matter is neither created nor destroyed in the course of any chemical reactions is a statement of the law of
  • A. combining volumes
  • B. conservation of mass
  • C. definite proportion
  • D. multiple proportion
  • E. reciprocal proportion.
View Answer & Discuss NECO 2008
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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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