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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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3201

The reddish–brown rust on iron roofing sheets consists of

  • A. Fe3 + (H2O)6
  • B. FeO.H2O
  • C. Fe2O3.XH2O
  • D. Fe3O4.2H22O
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3202
The densities of two gases, X and Y are 0.5gdm-3 and 2.0gdm-3 respectively. What is the rate of diffusion of X relative to Y?
  • A. 0.1
  • B. 0.5
  • C. 2.0
  • D. 4.0
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3203
The carbon atoms on ethane are
  • A. sp2 hybridized
  • B. sp3 hybridized
  • C. sp4 hybridized
  • D. sp hybridized
View Answer & Discuss (1) JAMB 2017
WAEC offline past questions - with all answers and explanations in one app - Download for free
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
3204
According to Charle's law, the volume of a gas becomes zero at
  • A. −100°c
  • B. −273°c
  • C. −373°c
  • D. 0°c
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3205
An oxide XO2 has a vapour density of 32. What is the atomic mass of X?
  • A. 20
  • B. 32
  • C. 14
  • D. 12
View Answer & Discuss (1) JAMB 2017
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC offline past questions - with all answers and explanations in one app - Download for free
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709