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Friday, 12 June 2026
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Chemistry Past Questions and Answers

Chemistry Questions

Question 2561:
Which of the following compounds has the highest ionic character?
  • A PCI<sub style='font-size: smaller;'>5</sub>
  • B SiCI<sub style='font-size: smaller;'>4</sub>
  • C AICI<sub style='font-size: smaller;'>3</sub>
  • D KCI
View Answer & Explanation
Question 2562:
If an element with high electron affinity combines with another element with low ionization energy the bond formed will be mainly
  • A Covalent
  • B Ionic
  • C Dative
  • D Metallic
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Question 2563:
One mole of a compound M(HCO<sub style='font-size: smaller;'>3</sub>)<sub style='font-size: smaller;'>2</sub> has a mass of 162g. Calculate the relative atomic mass of M. [H = 1, C =12, O = 16]
  • A 122
  • B 101
  • C 53
  • D 40
View Answer & Explanation
Question 2564:
Exhaust fumes discharged from a smoky vehicle gradually become invisible as a result of
  • A Diffusion
  • B Combustion
  • C Absorption
  • D Emission
View Answer & Explanation
Question 2565:
Which of the following movements can be described as random motion?
  • A Wheelbarrow being pushed
  • B Car travelling on a straight line
  • C Gas molecules colliding in a flask
  • D Planets going round the sun
View Answer & Explanation