JAMB Chemistry · Solutions, the environment and chemical change
Acids, bases and salts: JAMB Chemistry Past Questions and Answers
What the JAMB syllabus covers in Acids, bases and salts
Our summary: What acids, bases and salts are, how salts are made, strong and weak acids, pH, buffers, titration and salt hydrolysis.
- General characteristics, properties and uses of acids, bases and salts (Acids/base indicators, basicity of acids; normal, acidic, basic and double salts. An acid defined as a substance whose aqueous solution furnishes H₃O⁺ ions or as a proton donor. Ethanoic, citric and tartaric acids as examples of naturally occurring organic acids, alums as examples of double salts, preparation of salts by neutralization, precipitation and action of acids on metals. Oxides and trioxocarbonate (IV) salts.)
- Qualitative comparison of the conductance of molar solutions of strong and weak acids and bases, relationship between conductance and amount of ions present
- pH and pOH scale (Simple calculations, significance of pH value in everyday life, buffer solution.)
- Acid/base titrations
- Hydrolysis of salts (Simple examples such as NH₄Cl, AlCl₃, Na₂CO₃ and CH₃COONa.)
Objectives
- distinguish between the properties of acids and bases;
- identify the different types of acids and bases;
- determine the basicity of acids;
- differentiate between acidity and alkalinity using acid/base indicators;
- identify the various methods of preparation of salts;
- classify different types of salts;
- relate degree of dissociation to strength of acids and bases;
- relate degree of dissociation to conductance;
- perform simple calculations on pH and pOH;
- enumerate the significance of pH in everyday life;
- state applications of buffer solution;
- identify the appropriate acid-base indicator;
- interpret graphical representation of titration curves;
- perform simple calculations based on the mole concept;
- balance equations for the hydrolysis of salts; and
- deduce the properties (acidic, basic, neutral) of the resultant solution.
Syllabus content © The Joint Admissions and Matriculation Board (UTME).
JAMB Chemistry questions on Acids, bases and salts
- JAMB 2025The most suitable indicator to be used when reacting ethanedioic acid with potassium hydroxide is
- JAMB 2025Calculate the pH of 0.001M KOH solution.
- JAMB 2025The acid used in making baking soda and soft drink is
- JAMB 2025Find the hydrogen ion, H ^+ concentration and hydroxide ion, OH ^- concentration in 0.06 moldm ^ -3 solution of H 2 SO 4 .
- JAMB 2025An example of a salt that can dissolve in water to form a solution with a pH of 7.
- JAMB 2025The basicity of C 2 H 2 O 4 is
- JAMB 2025Acid radicals are present in
- JAMB 2025In a series of solutions with pH of 2.5, 3.5, 7.0 and 8.0, which is likely to turn red moist litmus paper blue?
- JAMB 2024The indicator used in a titration between strong acid and weak base is
- JAMB 2024The basicity of tetraoxophosphate(V) acid is
- JAMB 2024In the conductance of aqueous CuSO 4 solution, the current carriers are the
- JAMB 2024The salt formed when strong acid reacts with strong base is
- JAMB 2024Hydrochloric acid is not suitable in the preparation of ethanoic acid because it
- JAMB 2024The volume in cm ^3 of a 0.12 moldm ^ -3 HCl required to completely neutralize a 20cm ^3 of 0.20 moldm ^ -3 of NaOH is
- JAMB 2024Hydrochloric acid is regarded as a strong acid because it
- JAMB 2024Strong acids can be distinguished from weak acids by any of the following methods, EXCEPT
- JAMB 2024An example of an amphoteric oxide is
- JAMB 2024What is formed when metal reacts with acid to liberate gas?
- JAMB 2024The term strong and weak acids is used to indicate the
- JAMB 2023Which of the following is a common laboratory indicator for bases?
- JAMB 2023When an acidic solution is diluted, what happens to its pH?
- JAMB 2023A blue litmus paper turns red when dipped into a solution. What does this indicate about the solution?
- JAMB 2023Which of the following statements is true for strong electrolytes?
- JAMB 2023Which of the following is a characteristic property of acids?
- JAMB 2022H ^+ + OH ^- → H 2 O The equation above illustrates
- JAMB 2022What volume of (dm ^3 ) of water will be added to 10dm ^3 of 2.0 mol/dm ^3 HCL acid solution to give a final solution of 0.5 mol/dm ^3 ?
- JAMB 2021The process by which salt and water reacted in a limited way to form an acid or a base is?
- JAMB 2020The best treatment for a student who accidentally poured conc tetraoxosulphate(vi) on his skin in the laboratory is to wash his skin with?
- JAMB 2020A few drop of conc HCL are added to about 10cm ^3 of a solution of PH 3.4. The PH of the resulting mixture is?
- JAMB 2019Which of the following is a set of neutral oxides?
- JAMB 2019In the reaction between sodium hydroxide and tetraoxosulphate (VI) solutions, what volume of 0.5 molar sodium hydroxide would exactly neutralize 10cm ^3 of 1.25…
- JAMB 2019Which of the following describes the chemical property of acids?
- JAMB 2018If 1 litre of 2.2M sulphuric acid is poured into a bucket containing 10 litres of water and the resulting solution mixed thoroughly, the resulting sulphuric…
- JAMB 2018Which of the following produces relatively few ions in solution?
- JAMB 2018In the reaction between sodium hydroxide and sulphuric acid solutions, what volume of 0.5 molar sodium hydroxide would exactly neutralise 10cm3 of 1.25 molar…
- JAMB 2018The conductivity of an acid solution depends on the
- JAMB 2018The hydrogen ion concentration of a sample of orange juice is 2.0 X 10 ^ -11 moldm ^ -3 . What is its p ^ OH ? [log102 = 0.3010]
- JAMB 2018Calculate the pH of 0.05 moldm ^ -3 H 2 SO 4
- JAMB 2017A sample of orange juice is found to have a PH of 3.80. What is the concentration of the hydroxide ion in the juice?
- JAMB 2017The salt formed from a weak acid and a strong base hydrolyzes in water to form
- JAMB 2017The acid anhydride that will produce weak acid in water is
- JAMB 2016What volume of 0.5M H2SO4 will exactly neutralize 20cm3 of 0.1M NaOH Solution?
- JAMB 2016In a neutralization reaction involving HCI and NaOH using litmus as indicator, the colour at the end point is
- JAMB 2016Which of the following is not an alkali?
- JAMB 2016An example of an acidic oxide is
- JAMB 2016The colour of litmus in an alkaline medium is
- JAMB 2015Which of the following gives a precipitation when treated with NaOH Solution?
- JAMB 2015Tartaric acid is used industrially to
- JAMB 2015What volume of 0.5mldm3 H2SO4 will exactly neutralize 20cm3 of 0.1moldm3 NaOH Solution?
- JAMB 2014The colour of litmus in a neutral medium is
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