Chemical Reaction Theories Quiz

Which theory explains that reactions occur when molecules collide with sufficient energy and proper orientation?

• Transition State Theory

• Collision Theory

• Molecular Beam Theory

• Absolute Rate Theory

The Lindeman and Christiansen hypothesis is associated with which type of reactions?

• Bimolecular reactions

• Unimolecular reactions

• Reversible reactions

• Catalytic reactions

The transition state theory describes the activation of a reaction as involving a high-energy state called the:

• Activation complex

• Transition molecule

• Reaction intermediate

• Activation barrier

In enzyme catalysis, which model describes the formation of a complex between the enzyme and substrate that results in the production of the product?

• Michaelis-Menten model

• Collision model

• Arrhenius model

• Lindeman model

Which of the following methods is used to study fast reactions by rapidly changing the temperature?

• Relaxation method

• Temperature jump method

• Pulse radiolysis

• Flash photolysis

What does the 'primary salt effect' refer to in the context of reaction rates in solution?

• The effect of ionic strength on the concentration of reactants

• The effect of salts on the viscosity of a solution

• The effect of salts on the rate of reaction, specifically in ionic reactions

• The effect of temperature on the rate of reaction

Which of the following reactions is an example of a chain reaction?

• N2 + 3H2 → 2NH3

• H2 + Cl2 → 2HCl

• A → B → C

• H2 + Br2 → 2HBr (in the presence of light)

The Rice-Herzfeld mechanism is used to describe the pyrolysis of which compound?

• Methane

• Acetaldehyde

• Ethanol

• Benzene

The Bronsted-Lowry theory of acid-base catalysis is based on the transfer of:

• Electrons

• Protons

• Ions

• Free radicals

Which of the following methods is used for studying fast reactions by exposing a sample to a short pulse of light or radiation?

• Stopped flow method

• Flash photolysis

• Pulse radiolysis

• Magnetic field jump method