Biology 2015 E.C - 2023 G.C 2014 E.C - 2022 G.C Chemistry 2015 E.C - 2023 G.C Civics and Ethical Education 2015 E.C - 2023 G.C English 2015 E.C - 2023 G.C Geography 2015 E.C - 2023 G.C History 2015 E.C - 2023 G.C Physics 2015 E.C - 2023 G.C 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. Previous1234567891011121314151617Next 25. The point in a titration at which the number of moles of OH- ions added to a solution is equal to the number of moles of H+ ions originally present is Equivalence point Triple point End point Zero point 26. Which of the following statements describes chemical industries? It is a firm that involves usage of raw material to produce desired products by using chemical reactions and refining methods. a process in which dissolved solute comes out of solution and forms crystals. an expression for the chemical composition of a compound in terms of the symbols of the atoms of the elements involved. an area of chemistry concerned with the speeds, or rates, at which chemical reactions occur. 27. What will be the product if phosphorus reacts with excess amount of oxygen? P4O6" >P4O6 P4O10" >P4O10 H3PO4" >H3PO4 H3PO3" >H3PO3 28. One of the basic differences between metallic conduction and electrolytic conduction is: The conduction of electricity is due to the movement of ions in metallic conduction while the flow of mobile electrons in electrolytic conduction. The charge carriers in metals are localized electrons while strongly held ions are in electrolytic conduction. The charge carriers in metals are cations and anions while mobile electrons are in electrolytic conduction. The conduction of electricity is due to the movement of ions in an electrolytic conduction while the flow of mobile electrons in metallic conduction. 29. Which one of the following gases is released from combustion of a fuel in an industrial machinery causing global warming? SO2 NO CO2 CO Previous1234567891011121314151617Next 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!