11th Class Chemistry Complete Quiz Test

Chemistry is a vital subject for students preparing for the MDCAT exam, and a solid understanding of chemical principles is essential for success. The 11th Class Chemistry Complete Quiz is designed to help students master key topics such as atomic structure, chemical bonding, thermodynamics, and equilibrium. This quiz offers comprehensive coverage of the 11th-grade chemistry syllabus, ensuring that students are well-prepared for both their academic exams and the MDCAT.
Key Topics in the 11th Class Chemistry Quiz
The 11th Class Chemistry Complete Quiz encompasses the important chapters in the syllabus, including atomic structure and its models, periodic table and trends, chemical bonding and molecular structure, and stoichiometry. Students will also find questions dealing with thermodynamics, chemical equilibrium, and redox reactions, all of which are very important for MDCAT Chemistry.
Such practice by the student would result in a much better understanding of the principles in chemistry and could develop problem-solving skills for the more complex tasks. The multiple-choice questions will test both the theoretical knowledge and its practical applications, therefore making students very well prepared for exam scenarios.
Quiz for Practice
The MDCAT Quiz for 11th Class Chemistry contains different MCQs to test students both on basic and advanced topics. Regular practice of these questions makes the students more confident and accurate in attempting multiple-choice questions. The quiz includes frequently tested topics to acquaint students with the examination pattern and to prepare them sufficiently for the Chemistry section in the MDCAT.
- Test Name: 11th Class Chemistry Complete Quiz
- Total Questions: 330
- Total Marks: 330
- Time: 165 minutes
Note: Answer of the questions will change randomly each time you start the test, once you are finished, click the View Results button.
Free Flashcard for Quick Revision
Other than quizzes, there are free flashcards with which students may quickly revise crucial formulae, chemical reactions, and key concepts of the 11th Class Chemistry syllabus. These flashcards are an excellent means to a last-minute preparation, helping one retain important information that can be recalled quickly during the exams. Flashcards are especially useful in memorizing atomic structures, oxidation states, and reaction mechanisms—things very vital for success in MDCAT Chemistry.
Which of the following statements about the rate of reaction is true?
It decreases over time in all reactions
What does the term 'rate-determining step' refer to in a reaction mechanism?
The slowest step in the mechanism
Which of the following statements about activation energy is true?
It is the energy required to initiate a reaction
The overall order of a reaction is determined by ____________.
Adding up the individual orders of reactants in the rate law
What does the term 'rate constant' represent in a chemical reaction?
The proportionality constant relating rate of reaction to concentration of reactants
In a second-order reaction, if the concentration of reactant A is halved, what happens to the rate of the reaction?
It decreases by half
The term 'pre-exponential factor' in the Arrhenius equation represents ____________.
The frequency of collisions between reactant molecules
What is the effect of adding a catalyst on the activation energy of a reaction?
It decreases the activation energy
The rate-determining step in a reaction mechanism is the step that ____________.
Has the highest activation energy
What is the effect of increasing the concentration of reactants on reaction rate?
It increases the reaction rate
The collision theory of reaction rates states that _____________.
Reactants must collide with sufficient energy and proper orientation
A reaction has a rate law expression of rate = k[NO]^2[O2]. What is its order with respect to NO?
Second
Which law states that the product of the masses of the ions liberated at the electrodes during electrolysis is directly proportional to their chemical equivalent weights?
Faraday's second law
The process of converting a substance from its ionic form to its metallic form is called ____________.
Reduction
The device used to measure the potential difference between two electrodes is called a __________.
Voltmeter
The movement of ions in a solution under the influence of an electric field is called __________.
Electrolysis
Faraday's first law of electrolysis states that the mass of the substance deposited or liberated at an electrode during electrolysis is directly proportional to the __________.
Current
The process of depositing a layer of one metal over another by means of electrolysis is called ____________.
Electroplating
What is the electrode potential of a half-cell when the concentration of its ions is 1 M and the pressure of gases is 1 atm?
Standard electrode potential
What is the potential difference required to drive a non-spontaneous reaction in an electrochemical cell?
Electrolysis potential
What is the potential difference required to reduce a species at the cathode of an electrochemical cell?
Reduction potential
What is the potential difference required to oxidize a species at the anode of an electrochemical cell?
Oxidation potential
What is the process of coating a metal object with a thin layer of zinc to prevent corrosion?
Galvanization
What is the process of using an external source of electricity to drive a non-spontaneous chemical reaction?
Electrolysis
What is the process of depositing a thin layer of metal onto an object using electrolysis?
Electroplating
What is the movement of ions in an electrolyte solution under the influence of an electric field?
Electrolysis
What is the concentration of a solution expressed as the equivalent weight of solute per liter of solution?
Normality
What is the concentration of a solution expressed as the moles of solute per kilogram of solvent?
Molality
What is a solution that has a concentration greater than its solubility at a given temperature?
Supersaturated solution
What is the concentration of a solution expressed as the equivalent weight of solute per liter of solution?
Normality
What is the temperature at which a given solid solute will dissolve in a solvent to form a saturated solution?
Solubility temperature
What is the concentration of a solution expressed as the equivalent weight of solute per liter of solution?
Normality
What is the temperature at which a given liquid solute will dissolve in a solvent to form a saturated solution?
Solubility temperature
What is a solution that has a concentration less than its solubility at a given temperature?
Unsaturated solution
What is the concentration of a solution expressed as the number of moles of solute per kilogram of solvent?
Molality
What is the concentration of a solution expressed as the number of equivalent weights of solute per liter of solution?
Normality
What is the concentration of a solution expressed as the number of moles of solute per liter of solution?
Molarity
What is the concentration of a solution expressed as the number of moles of solute per kilogram of solvent?
Molality
What is the temperature at which a given solid solute will dissolve in a solvent to form a saturated solution?
Solubility temperature
What is the temperature at which a given solid solute will dissolve in a solvent to form a saturated solution?
Solubility temperature
What is the temperature at which a given solid solute will dissolve in a solvent to form a saturated solution?
Solubility temperature
What is a solution that has a concentration equal to its solubility at a given temperature?
Saturated solution
What is a solution that has a concentration less than its solubility at a given temperature?
Unsaturated solution
What is a solution that has a concentration greater than its solubility at a given temperature?
Supersaturated solution
What is a solution that has a higher concentration of solute compared to another solution?
Hypertonic
What is the concentration of a solution expressed as the number of equivalents of solute per liter of solution?
Normality
What is the concentration of a solution expressed as the equivalent weight of solute per liter of solution?
Normality
What is the constant that relates the concentrations of reactants and products at equilibrium?
Equilibrium constant
What is the condition where the concentrations of reactants and products are continuously changing over time?
Non-equilibrium
What is the process by which a system at equilibrium responds to a disturbance to reestablish equilibrium?
Le Chatelier's principle
What is the value of the equilibrium constant for a reaction where reactants are favored?
Less than 1
What is the value of the equilibrium constant for a reaction where reactants are favored?
Less than 1
What is the value of the equilibrium constant for a reaction where products are favored?
Greater than 1
What is the value obtained when the concentrations of reactants and products are substituted into the equilibrium expression?
Equilibrium constant
What is the condition where the concentrations of reactants and products are changing, but the ratio remains constant?
Dynamic equilibrium
What is the condition where the rates of the forward and reverse reactions are not equal?
Non-equilibrium
What is the process by which a system at equilibrium responds to a disturbance to reestablish equilibrium?
Le Chatelier's principle
What is the principle that states that a system at equilibrium will adjust to counteract any change in conditions?
Le Chatelier's principle
What is the term for the ratio of product concentrations to reactant concentrations at equilibrium?
Equilibrium constant
What is the condition where the concentrations of reactants and products remain constant over time?
Chemical equilibrium
What is the constant that relates the concentrations of reactants and products at equilibrium?
Equilibrium constant
What is the expression that relates the concentrations of reactants and products at equilibrium?
Equilibrium constant
What is the condition where the concentrations of reactants and products are continuously changing over time?
Non-equilibrium
What is the condition where the concentrations of reactants and products are not changing over time?
Chemical equilibrium
What is the condition where the rate of the forward reaction equals the rate of the reverse reaction?
Equilibrium
What is the value of the equilibrium constant for a reaction where reactants are favored?
Less than 1
What is the value of the equilibrium constant for a reaction where products are favored?
Greater than 1
What is the symbol used to represent a system at equilibrium in a chemical equation?
⇌ (double arrow)
What is the condition where the concentrations of reactants and products are changing, but the ratio remains constant?
Dynamic equilibrium
What is the expression that represents the relationship between the concentrations of reactants and products at equilibrium?
Equilibrium constant
What is the condition where the rates of the forward and reverse reactions are not equal?
Non-equilibrium
What is the condition where the concentrations of reactants and products are continuously changing over time?
Non-equilibrium
What is the process by which a system at equilibrium responds to a disturbance to reestablish equilibrium?
Le Chatelier's principle
What is the condition where the concentrations of reactants and products are not changing over time?
Equilibrium
What is the heat absorbed or released when a system gains or loses heat at constant volume?
Internal energy
What is the heat absorbed or released when a gas is compressed and does work on its surroundings?
Enthalpy
What is the heat absorbed or released when a system undergoes a chemical reaction at constant volume?
Internal energy
What is the heat absorbed or released when a system undergoes a chemical reaction at constant pressure?
Enthalpy
What is the heat absorbed or released when a system gains or loses heat at constant pressure?
Enthalpy
What is the heat absorbed or released when a substance absorbs or loses heat without changing its temperature?
Enthalpy
What is the heat absorbed or released when a liquid freezes into a solid at constant temperature?
Enthalpy of fusion
What is the heat absorbed or released when a gas condenses into a liquid at constant temperature and pressure?
Enthalpy of condensation
What is the heat absorbed or released when one mole of a substance undergoes a phase change from solid to gas?
Enthalpy of sublimation
What is the heat absorbed or released when one mole of a substance undergoes a phase change from liquid to gas?
Enthalpy of vaporization
What is the heat absorbed or released when one mole of a substance undergoes a phase change from solid to liquid?
Enthalpy of fusion
What is the heat change associated with the vaporization of one mole of a substance?
Enthalpy of vaporization
What is the heat absorbed or released when one mole of a substance combines with a large excess of another substance?
Enthalpy of reaction
What is the heat change associated with the dissolution of one mole of a substance in a solvent?
Enthalpy of solution
What is the heat absorbed or released during a chemical reaction carried out at constant volume?
Internal energy change
What is the heat absorbed or released during a chemical reaction carried out at constant pressure?
Enthalpy change
What is the heat absorbed or released when one mole of a substance is burned completely in oxygen?
Enthalpy of combustion
What is the heat change associated with the formation of one mole of a compound from its elements in their standard states?
Standard enthalpy of formation
What is the heat absorbed or released when one mole of a substance combines with a large excess of another substance to form a solution?
Enthalpy of neutralization
What is the heat absorbed or released when one mole of a substance is dissolved in a specified amount of solvent?
Enthalpy of dilution
What is the heat absorbed or released when one mole of a substance is dissolved in a large amount of solvent?
Enthalpy of solution
What is the enthalpy change when one mole of a substance is burned completely in oxygen under standard conditions?
Standard enthalpy of combustion
What is the heat absorbed or released when one mole of a substance undergoes a change of state at constant temperature and pressure?
Enthalpy of fusion
What is the change in enthalpy for a reaction carried out under standard conditions?
Standard enthalpy change
What is the change in enthalpy for a reaction in which one mole of a compound is formed from its elements in their standard states?
Standard enthalpy of formation
What is the electrostatic attraction between oppositely charged ions in a chemical compound?
Ionic bond
What type of bond is formed between atoms with a small difference in electronegativity?
Covalent bond
What is the sharing of electrons between atoms to achieve a stable electron configuration?
Covalent bond
What is the force of attraction between metal cations and the surrounding sea of electrons?
Metallic bond
What type of bond involves the sharing of electrons in a way that each atom achieves a noble gas configuration?
Covalent bond
What is the force of attraction between atoms that share one or more pairs of electrons?
Covalent bond
What is the force of attraction between the positive ions and negative ions in an ionic compound?
Ionic bond
What is the sharing of electrons between atoms to achieve a stable electron configuration?
Covalent bond
What type of bond involves the sharing of electrons in a way that each atom has a full outer shell?
Covalent bond
What type of bond involves the attraction between positive metal ions and delocalized electrons?
Metallic bond
What is the sharing of valence electrons between atoms to achieve a full outer shell of electrons?
Covalent bond
What is the force of attraction between atoms within a molecule due to the sharing of electrons?
Covalent bond
What is the term for the sharing of electron pairs between atoms to form a stable compound?
Covalent bond
What is the term for the attraction between oppositely charged ions in a chemical compound?
Ionic bond
What is the term for the energy change that occurs when an electron is added to a neutral atom in the gaseous phase?
Electron affinity
What is the term for the energy required to remove an electron from an atom or ion in the gaseous state?
Ionization energy
What is the term for the energy required to remove the outermost electron from a neutral atom in its ground state?
Ionization energy
What is the term for the distance from the nucleus to the outermost electron shell of an atom?
Atomic radius
What is the term for the energy change that occurs when an electron is added to a neutral atom in the gaseous phase?
Electron affinity
What is the term for a measure of the ability of an atom to attract bonding electrons to itself?
Electronegativity
What is the term for the energy required to break a chemical bond and separate two atoms?
Bond dissociation energy
What is the term for the size of an atom, usually defined as the distance from the nucleus to the outermost electron shell?
Atomic radius
What is the term for the energy required to remove the most loosely held electron from an atom?
Ionization energy
What is the term for the ability of an atom to attract shared electrons in a covalent bond?
Electronegativity
What is the term for the energy change that occurs when an electron is added to a neutral atom to form a negative ion?
Electron affinity
What is the term for the energy released when an electron is added to an atom in its gaseous state?
Electron affinity
What is the term for the attraction of an atom for the electrons in a chemical bond?
Electronegativity
What is the term for the energy required to remove an electron from an atom in its gaseous state?
Ionization energy
What is the term for the weighted average mass of all naturally occurring isotopes of an element?
Atomic weight
What is the term for the average mass of an element's isotopes, taking into account their relative abundances?
Atomic mass
What is the term for atoms or molecules with the same molecular formula but different structural arrangements?
Isomers
What is the term for atoms that have the same number of protons but different numbers of electrons?
Ions
What is the term for an atom that has gained or lost electrons, resulting in a positive or negative charge?
Ion
What is the region surrounding the nucleus of an atom where electrons are likely to be found?
Electron cloud
What type of solid has an ordered and repeating arrangement of particles in a three-dimensional pattern?
Crystalline
What is the process by which a solid changes directly into a gas without passing through the liquid state?
Sublimation
What is the process by which a liquid changes directly into a gas without passing through the solid state?
Evaporation
What is the process by which a gas changes directly into a solid without passing through the liquid state?
Deposition
What is the temperature at which a solid changes directly into a gas without passing through the liquid state?
Sublimation
What is the process by which a liquid changes directly into a gas below its boiling point?
Evaporation
What is the intermolecular force that holds nonpolar molecules together in a liquid?
Van der Waals forces
What is the pressure of a gas that has a volume of 6.0 L and a temperature of 350 K if it exerts a force of 300 N?
100 atm
What is the pressure of a gas that has a volume of 4.0 L and a temperature of 250 K if it exerts a force of 150 N?
30 atm
What is the pressure of a gas that has a volume of 3.0 L and a temperature of 200 K if it exerts a force of 50 N?
16.7 atm
What law states that the pressure of a fixed mass of gas at constant temperature is inversely proportional to its volume?
Boyle's law
What is the pressure of a gas that has a volume of 5.0 L and a temperature of 400 K if it exerts a force of 200 N?
40 atm
What is the pressure of a gas that has a volume of 2.0 L and a temperature of 300 K if it exerts a force of 100 N?
50 atm
What law states that the volume of a gas is inversely proportional to its pressure, provided the temperature remains constant?
Boyle's law
What is the pressure exerted by a gas if it occupies 3.0 L at a temperature of 25°C and a volume of 1.0 L at 100°C?
1 atm
What law states that the volume of a fixed mass of gas at constant pressure is directly proportional to its absolute temperature?
Charles's law
Which technique is used to determine the concentration of a solution by measuring its absorbance at a specific wavelength?
Spectrophotometry
Which technique is used to separate and analyze the components of a mixture based on their interaction with a magnetic field?
NMR spectroscopy
Which technique is used to determine the concentration of a solution by measuring its electrical conductance?
Conductometry
Which technique is used to determine the concentration of a solution by measuring its absorbance in the ultraviolet and visible regions?
UV-Vis spectroscopy
Which technique is used to separate and analyze the components of a mixture based on their electrophoretic mobility?
Capillary electrophoresis
Which technique is used to determine the concentration of a solution by measuring its refractive index?
Refractometry
Which technique is used to separate and analyze the components of a mixture based on their migration through a porous medium?
Chromatography
Which technique is used to determine the concentration of a solution by measuring its absorption or emission of gamma rays?
Gamma spectroscopy
Which technique is used to determine the concentration of a solution by measuring its absorbance at a specific wavelength?
Spectrophotometry
Which technique is used to separate and analyze the components of a mixture based on their interaction with a magnetic field?
NMR spectroscopy
Which technique is used to determine the concentration of a solution by measuring its absorption of infrared radiation?
Infrared spectroscopy
Which technique is used to separate and analyze the components of a mixture based on their migration through a gel matrix?
Gel electrophoresis
Which technique is used to determine the concentration of a solution by measuring its absorption or emission of X-rays?
X-ray spectroscopy
Which technique is used to determine the concentration of a solution by measuring the intensity of light scattered by particles?
Turbidimetry
Which technique is used to determine the concentration of a solution by measuring its optical rotation?
Polarimetry
Which technique is used to separate and analyze the components of a mixture based on their volatility?
Gas chromatography
Which technique is used to determine the structure of organic compounds by analyzing their absorption of microwave radiation?
NMR spectroscopy
Which technique is used to separate and analyze the components of a mixture based on their interaction with a stationary phase and a mobile phase?
Chromatography
Which technique is used to determine the concentration of a solution by measuring its redox potential?
Potentiometry
Which technique is used to separate and analyze the components of a mixture based on their size and shape?
Gel electrophoresis
Which technique is used to determine the concentration of a solution by measuring its pH?
Potentiometry
Which technique is used to determine the structure of organic compounds by analyzing their absorption of radio waves?
NMR spectroscopy
Which technique is used to separate and analyze the components of a mixture based on their charge-to-size ratio?
Capillary electrophoresis
Which technique is used to determine the structure of organic compounds by analyzing their absorption of ultraviolet and visible light?
UV-Vis spectroscopy
Which technique is used to determine the concentration of a solution by measuring its electrical conductivity?
Conductometry
Which technique is used to separate and analyze the components of a mixture based on their mass-to-charge ratio?
Mass spectrometry
Which technique is used to determine the structure of organic compounds by analyzing their fragmentation patterns?
Mass spectrometry
Which technique is used to identify and quantify the organic compounds present in a mixture?
Gas chromatography
Which technique is used to separate components of a mixture based on their affinity for a stationary phase and a mobile phase?
Chromatography