Chemistry - Grade 12 - 2023 G.C
40 . Which one of the following gas laws states the volume of a fixed amount of gas maintained at constant pressure is directly proportional to the absolute temperature of the gas?

  1. Combined gas law
  2. Avogadro's law
  3. Boyle's law
  4. Charles' law


41 . Which one of the following is an example of molecular crystals?

  1. Magnesium
  2. Solid carbon dioxide
  3. Sodium Chloride
  4. Diamond


42 . Which one of the following COULD NOT be considered as factor influencing the rate of chemical reaction?

  1. Temperature of reactants
  2. The rate constant of the reaction
  3. Surface area of reactants
  4. Presence of catalyst


43 . Which one of the following shows the hybridization scheme of the central atom in H2O?


  1. option A

  2. option B

  3. option C

  4. option D


44 . In which of the following order of a reaction, a plot of In [A]t versus time is a straight line whose slope is - k?

  1. Second
  2. Third
  3. Zero
  4. First


We have provided these questions from previous years grade 12 Ethiopian Secondary School Leaving Certificate Examination (ESSLCE) exams with the sole purpose of assisting students in their studies and preparations for upcoming exams. Please be aware that these questions are not indicative of future exam content. Good luck with your studies!

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