Chemistry - Grade 12 -2023 G.C

Grade 12 students can now access their exam results by visiting the Educational Assessment and Examination Services (EAES) website.


30. The number of digits to the right of the decimal point denotes:

  1. Scientific notation
  2. Conversion factor
  3. Decimal places
  4. Significant figures


31. Which one of the following IS TRUE about isotopes?

  1. Isotopes of an element have the same chemical properties.
  2. Isotopes of the same elements contain the same number of neutrons.
  3. Isotopes of an element are identical in mass number.
  4. Isotopes of an element are atoms that have different number of electrons and protons.


32. Which one of the following describes the quantum mechanical model?

  1. Electrons moved around the nucleus of an atom in circular orbits.
  2. An atom is a sphere with a positively charged matter, in which electrons are embedded.
  3. An atom is represented by a solid indestructible sphere.
  4. The locations of electrons in an atom are described in terms of probability.


33. Which one of the following is the diagrammatic representation of 1735Cl?

  1. " >
    option A
  2. " >
    option B
  3. " >
    option C
  4. " >
    option D


34. Which one of the following is an ionic compound?

  1. H2O2
  2. PCl3
  3. CO2
  4. CaCl2


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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