Subject
chemistry
Questions and answers
Date: 25/7/2022
CHAPTER ONE:
Q1: Define acids and bases?
A1: a. An acid is a substance that dissolves in water to produce hydrogen ions (H+).
b. A base is a substance that dissolve in water to produce hydroxide ion.
Q2 Define acid and base based on bronsted lowry theory ?
A2A cid is the substance that can transfer proton ion.
Base is the substance that can accept proton.
Q3 Define binary or non-oxy acid?
A3: is the acid that contain only two elements.
Q4 what are the types of acid based on the number of proton they can donate?
A4: Monoprotic acid,diprotic acid and tri protic acid
Q5 what are the types of acid and base based on their relative strength?
A5: Acid strong acid weak acid.
Base strong base,weak base and super base.
Q6: What are the properties acid and base?
A6: A. Acid have a sour taste and produce H+ ion
B. Base have a bitter taste and produce hydroxide ion
Q7: Define neutralization reaction?
A7: Is the reaction b/w acid and base to produce salt and water.
Q8: Define amphoteric substance?
A8: Is a substance that acts as both acid and base.
Q9: Define Salt?
A9: Is the ionic compound that result from neutralization reaction.
Q10: What are common uses of salts?
A10: 1. Used in cooking food. 2. Used manufacture of soap
Abdalla Kassim Omar (Abwaanka)
Page 1
CHAPTER TWO:
Q1: Define oxidation reaction and reduction?
A1: a. Oxidation reaction: is the addition of oxygen.
b. Reduction: is the loss of oxygen.
Q2: Define redox reaction?
A2: is the reaction that involves electron transfer.
Q3: What are the types of redox reaction?
A3: 1. Combination reaction. 2. Decomposition reaction. 3.
Combustion reaction.
Q4: Differentiate b/w oxidizing agent and reducing agent?
A4: 1. Oxidizing agent: is the species that being reduced.
2. Reducing agent: Is a substance that being oxidized
CHAPTER THREE:
Q1: Define electrochemistry?
A1: Is the branch of physical chemistry that studies relationship b/w
chemical reaction and electricity.
Q2: Differentiate spontaneous reaction and non-spontaneous
reaction?
A2: A. Spontaneous reaction: is the reaction that occur without an
external agent.
B. Non-spontaneous reaction: is the reaction that occur with external
agent.
Q3: What are the main types of Electro chemical process?
A3: Electrolytic process and galvanic process
Q4: Differentiate b/w electrolytic process and galvanic process?
A4: 1. Electrolytic process: is the process electrical energy is converted
to chemical energy.
Subject
chemistry
Questions and answers
Date: 25/7/2022
2. Galvanic process: is the process chemical energy converted to electrical
energy.
Q3: What are the two types of electro chemical cells?
A3: Galvanic cell and electrolytic cell.
Q4: What are the types of conductors?
A4: Metallic conductor and Electrolytic conductor.
Q5: What are the types of conductors electrolytes?
A5: Strong electrolytes and weak electrolytes
Q6: Define galvanic cell and voltaic cell?
A6: Is the converts chemical energy to electrical energy.
Q7: Define Electro potential?
A7: Is the measure of tendency metal atoms to gain or loss electron.
Q8: Define Electro motive force (cell potential)?
A8: Is the difference b/w anode and cathode in a galvanic cell.
Q9: Define electrolytic cell?
A9: Is the device in which electrical energy is converted to chemical
energy.
Q10: Define electrolysis?
A10: Is the process of decomposition of electrolyte into their constituent
elements by passing electricity through it.
Q11: What is the potential discharge?
A11: Is the process of changing ions into free atoms
GOOD LUCKY
Abdalla Kassim Omar (Abwaanka)
Page 3