1.
What is chemical kinetics also known as?
Correct Answer
C. Reaction kinetics
Explanation
Chemical kinetics is the study of the rates at which chemical reactions occur and the factors that influence these rates. It involves the investigation of the steps involved in a reaction, the mechanisms by which it occurs, and the factors that can speed up or slow down the reaction. Therefore, "Reaction kinetics" is a suitable alternative term for chemical kinetics.
2.
What year was the idea of chemical kinetics pioneered?
Correct Answer
B. 1864
Explanation
Chemical kinetics is the study of the rates at which chemical reactions occur. The idea of chemical kinetics was pioneered in the year 1864. This means that in 1864, scientists began to explore and understand the factors that influence the speed of chemical reactions. Prior to this, there was limited knowledge about the rates of chemical reactions and how they can be influenced. The year 1864 marked a significant milestone in the development of the field of chemical kinetics.
3.
How many people is the pioneer of chemical kinetics usually attributed to?
Correct Answer
B. 2
Explanation
The pioneer of chemical kinetics is usually attributed to two people.
4.
Who among the following names contributed to pioneering chemical kinetics?
Correct Answer
A. Peter Waage
Explanation
Peter Waage contributed to pioneering chemical kinetics. He was a Norwegian chemist who, along with his collaborator Cato Guldberg, formulated the law of mass action. This law describes the relationship between the concentrations of reactants and the rate of a chemical reaction. Their work laid the foundation for the field of chemical kinetics, which studies the rates and mechanisms of chemical reactions. While Albert Einstein is well-known for his contributions to physics, he did not specifically contribute to chemical kinetics. John Smith is a generic name and does not refer to any specific individual.
5.
Which of these laws was the first law made on chemical kinetics? The Law of ___
Correct Answer
D. Mass Action
Explanation
Mass Action is the correct answer because it was the first law made on chemical kinetics. Mass action refers to the principle that the rate of a chemical reaction is directly proportional to the product of the concentrations of the reactants. This law was formulated by Guldberg and Waage in 1864 and laid the foundation for the study of chemical kinetics. It states that the rate of a reaction depends on the collision frequency of reactant molecules, which in turn depends on their concentrations.
6.
Who published the famous “Etudes de dynamique chimique”?
Correct Answer
A. Van Hoof
Explanation
Van Hoof published the famous "Etudes de dynamique chimique".
7.
What year was the famous "Etudes de dynamique chimique" published?
Correct Answer
C. 1884
Explanation
The correct answer is 1884. This is the year when the famous "Etudes de dynamique chimique" was published.
8.
Who won the first Nobel Prize in Chemistry on his work on chemical kinetics?
Correct Answer
A. Van Hoof
Explanation
Van Hoof is the correct answer because he won the first Nobel Prize in Chemistry for his work on chemical kinetics. This implies that the other options, Joe Hoo, Albert Einstein, and Winston Daily, did not win the first Nobel Prize in Chemistry for their work on chemical kinetics.
9.
What is chemical kinetics concerned with?
Correct Answer
A. Chemical Reactions
Explanation
Chemical kinetics is concerned with the study of the speed or rate at which chemical reactions occur. It involves the investigation of factors that affect the rate of reactions, such as temperature, concentration, catalysts, and surface area. Chemical kinetics helps in understanding the reaction mechanism and predicting the outcome of reactions. Therefore, the answer "Chemical Reactions" is correct as it accurately represents the main focus of chemical kinetics.
10.
Which of these has been noticed to increase chemical reactions?
Correct Answer
B. Light
Explanation
Light has been noticed to increase chemical reactions because it provides energy to the reacting molecules, allowing them to overcome the activation energy barrier and proceed with the reaction. This energy can be in the form of visible light, ultraviolet light, or even infrared radiation, depending on the specific reaction. When light is absorbed by molecules, it can excite their electrons to higher energy levels, making them more reactive and facilitating the breaking and forming of chemical bonds. As a result, light can significantly speed up the rate of chemical reactions.