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Chemistry 2001 WAEC Past Questions

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36
Waste plastics accumulate in the soil and pollute the environment because plastic materials are
  • A. insoluble in water
  • B. non-biodegradable
  • C. easily affected by heat
  • D. inflammable
View Answer & Discuss (6) WAEC 2001
37
The conclusion from Rutherford's from radioactive substance alpha-scattering experiment is that
  • A. atoms are mostly empty space with a samll
  • B. emissions from radioactive substances consist of three main components
  • C. there is unclear pull on orbital electrons
  • D. electrons are deflected by both magnetic and electric fields
View Answer & Discuss (1) WAEC 2001
38
If a metal R forms a compound with the formula R(NO3)2 the formula of its tetraoxosulphate (VI) is
  • A. R(SO4)2
  • B. RSO4
  • C. R2SO4
  • D. R2(SO4)3
View Answer & Discuss WAEC 2001
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
39
Which of the following decreases when a given mass of gas is compressed to half its initial volume?
  • A. Average intermolecular distance
  • B. Frequency of collisions
  • C. Number of molecules present
  • D. Atomic radius of each particle
View Answer & Discuss (3) WAEC 2001
40
What volume of hydrogen will be produced if 100cm3 of ammonia is completely decomposed at constant temperature and pressure? The equation for the reaction is 2NH3(g) → N2(g) + 3H2(g)
  • A. 50cm3
  • B. 150cm3
  • C. 200cm3
  • D. 300cm3
View Answer & Discuss (3) WAEC 2001
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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
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