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CHEMISTRY FORM THREE QUESTIONS AND ANSWERS  1. Identify the letter of the correct answer.      (i) Which of the following is not a compound of metal?     A: magnesium oxide  B: aluminium oxide     C: sulphur dioxide   B: iron (ii) iron (ii) sulphate     (ii) They used to soften water and manufacture glass.          A: carbonate compounds  B: Nitrate compounds   (iii) Prepared by direct combination of metal and water.         A: oxides   B: hydroxides   C: Nitrates  D: sulphates.   (iv) Carbon dioxide, water and salts are formed when they react with acid.       A: sulphates   B: chlorides C: nitrates  D: Carbonates  (v) Action of metals and dilute hydrochloric acid lead to formation of       A: chlorine   B: c...

                    CHEMISTRY FORM THREE QUESTIONS AND ANSWERS  QUESTIONS.  1. Identify the most correct answer.      i) The series of elements arranged in order of increase of electrode potential.    A: periodic table  B: reactivity series    C: groups.             D: period ii) Ionize by electron loss.    A: positive charge  B: metals  C: halogens      D: non-metals (iii) Metals that found as oxides        A: are of medium reactivity        B: are very very reactive        C: are least reactive         D: lead and gold  (iv) Obtaining metal from its ore         A: it is mixture separation         B: it is extraction of metal         C: Concentration of met...

CHEMISTRY FORM THREE QUESTIONS AND ANSWERS  FORM III TOPIC 7. CHEMICAL KINETICS, EQUILIBRIUM AND ENERGETICS:              QUESTIONS: 1. Identify the most correct answer at each item from the alternatives provided. i) Describes rate and factors that cause chemical reaction and affect rate of chemical reaction.    A: equilibrium reaction    B: reversible reaction.    C: chemical kinetics    D: equilibrium position  ii) Lowering of activation energy.       A: decrease rate of chemical reaction       B:  make reacting particles to start reaction easily.       C: favours backward reaction       D: stops the chemical reactions.  iii)  According to the Collision theory, chemical reaction only takes place when particles     A: collide  B: break up  C: bond. Warmed  iv) Eve...

CHEMISTRY FORM THREE QUESTIONS AND ANSWERS  FORM III TOPIC 6. IONIC THEORY AND ELECTROLYSIS 1. Identify the letter correct answer from the alternatives provided. i) One of the following is not an electrolyte:- A) A very concentrated sulphuric acid B) Molten aluminium oxide C) Copper sulphate solution.  D) Sodium chloride solution. ii) Ionic compounds are electrolyte but when they are in solid state they can not conduct electricity because ____ A) Thy do not contain charged particles. B) They contain charged particles. C) Ions are not free to move  D) There is free movement of ions. iii) Any substance which found in molten state and can allow electricity to pass through is called A) Electrolyte B) Conductor C) Insulator        D) Electric wire. iv) Positively and negatively charged particles are called A) Electrodes B) Cations C) Cathodes  D) Ions v) _____is elecrolytic unit of charge. A) Current B) Faraday  C...

CHEMISTRY FORM THREE QUESTIONS AND ANSWERS  FORM III TOPIC 5. VOLUMETRIC ANALYSIS. QUESTIONS. 1. Identify the letter of the most correct answer.    i)In a standard solution the following are known:-       A: mass and moles  B: molarity and concentration       C: amount of solute and solvent D: mass and molar mass   ii)Apparatus for measuring accurate volume of liquids are:-       A: pipette and burette  B: beaker and dropper       C: Conical flask and reagent bottle D: measuring cylinder and funnel  iii)The quantity of substance in volumetric analysis expressed in the following forms except:-       A: number of moles present in certain volume of solution       B: mass of solute dissolved to make known volume of solution.       C: molarity       D: number of particles   iv)Both methyl orange and phenolphthale...

CHEMISTRY FORM THREE QUESTIONS AND ANSWERS  FORM III TOPIC 4. MOLE CONCEPT AND RELATED CALCULATIONS: BANK OF QUESTIONS WITH SOLUTIONS QUESTIONS 1. Multiple choice.     Choose the most correct answer from the given alternatives. (i)The mass of one molecule of a compound compared with the mass of one atom of carbon 12 is called _______   A: molar mass   B: relative atomic mass   C: moles   D: molarity (ii) Molar mass of 2H2O (water) ...............   A: 18    B: 36   C: 17   D: 54 (iii) .............. is a ratio of mass or volume of the substance to its molar mass or molar volume.   A: mole   B: molarity   C: concentration   D: relative atomic mass (iv) In order to obtain ................ , Avogadro's constant is multiplied with number of moles of the substance.  A: molar mass  B: molar solution  C: electrons  D: number of particles. (v...