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Chemistry 2011 JAMB Past Questions

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31
The bleaching action of chlorine gas is effective due to the presence of
  • A. hydrogen chloride
  • B. water
  • C. air
  • D. oxygen
View Answer & Discuss (11) JAMB 2011
32
In the laboratory preparation of oxygen, dried oxygen is usually collected over
  • A. hydrochloric acid
  • B. mercury
  • C. calcium chloride
  • D. tetraoxosulphate (VI) acid
View Answer & Discuss (8) JAMB 2011
33

The property of concentrated H2SO4 that makes it suitable for preparing HNO3 is its

  • A. boiling point
  • B. density
  • C. oxidizing properties
  • D. dehydrating properties
View Answer & Discuss (13) JAMB 2011
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34
Bronze is preferred to copper in the making of medals because it
  • A. is stronger
  • B. can withstand low temperature
  • C. is lighter
  • D. has low tensile strength
View Answer & Discuss (4) JAMB 2011
35
The constituents of baking powder that makes the dough to rise is
  • A. NaHCO3
  • B. NaOH
  • C. Na2CO3
  • D. NaCl
View Answer & Discuss (1) JAMB 2011
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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
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