Types Of Chemical Changes! Trivia Quiz

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Questions: 10 | Attempts: 189 | Updated: Mar 22, 2023

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Types Of Chemical Changes! Trivia Quiz - Quiz

Chemical change means either reaction between two or more substances to form a new compound or the break down of a compound to simpler compounds. Chemical changes are usually influenced by condition which speeds up or slows the chemical process. Here is a quiz for you if you are familiar with chemical changes. Take it!

Questions and Answers

1.

Which of these is not an inorganic change?
- A.
  
  Neutralization
- B.
  
  Combustion
- C.
  
  Condensation
- D.
  
  Oxidation
Correct Answer
C. Condensation

Explanation
Condensation is the process of a gas or vapor turning into a liquid, typically due to a decrease in temperature or an increase in pressure. This is a physical change and does not involve the breaking or formation of chemical bonds. In contrast, neutralization, combustion, and oxidation are all chemical changes that involve the rearrangement of atoms and the formation or breaking of chemical bonds. Therefore, condensation is the only option that represents a physical change rather than an inorganic chemical change.

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1
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2.

What are reactions that produce heat called?
- A.
  
  Endothermic reaction
- B.
  
  Exothermic reaction
- C.
  
  Inorganic reaction
- D.
  
  Organic reaction
Correct Answer
B. Exothermic reaction

Explanation
Exothermic reactions are chemical reactions that release heat energy to the surroundings. This is because the reactants have a higher amount of energy than the products, and the excess energy is released as heat. In contrast, endothermic reactions absorb heat energy from the surroundings, causing a decrease in temperature. Inorganic and organic reactions refer to the types of compounds involved in the reaction, and are not specifically related to heat production.

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2
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3.

What are reaction during which heat is absorbed called?
- A.
  
  Endothermic reaction
- B.
  
  Exothermic reaction
- C.
  
  Neutralization
- D.
  
  Condensation
Correct Answer
A. Endothermic reaction

Explanation
Endothermic reactions are chemical reactions that absorb heat from their surroundings. In these reactions, the energy of the products is higher than the energy of the reactants, resulting in a net absorption of heat. This causes the surroundings to cool down as the reaction takes place. Examples of endothermic reactions include the evaporation of water, photosynthesis, and the reaction between baking soda and vinegar.

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4.

Which of these is not a biochemical change?
- A.
  
  Protein synthesis
- B.
  
  Digestion
- C.
  
  Cracking
- D.
  
  Photosynthesis
Correct Answer
C. Cracking

Explanation
Cracking is not a biochemical change because it is a physical process that involves breaking down large hydrocarbon molecules into smaller ones. It does not involve any chemical reactions or the involvement of enzymes. On the other hand, protein synthesis, digestion, and photosynthesis are all biochemical changes that involve the breaking down or building up of molecules through chemical reactions and the use of enzymes.

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5.

Which of these is not a sign that chemical changes had taken place?
- A.
  
  Change in color
- B.
  
  Change in composition
- C.
  
  Formation of heat
- D.
  
  Change in composition
Correct Answer
C. Formation of heat

Explanation
The formation of heat is not a sign that chemical changes had taken place. While chemical reactions can often produce heat as a byproduct, the presence of heat alone does not indicate a chemical change. Other signs, such as a change in color or composition, are more reliable indicators of a chemical reaction occurring.

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6.

Which of these is not a chemical change?
- A.
  
  Physical change
- B.
  
  Organic change
- C.
  
  Inorganic change
- D.
  
  Biochemical change
Correct Answer
A. Physical change

Explanation
A physical change refers to a change in the physical properties of a substance without altering its chemical composition. Examples of physical changes include changes in state (such as melting or freezing), changes in shape or size, and changes in appearance (such as cutting or tearing). In contrast, chemical changes involve the formation of new substances with different chemical properties. Therefore, a physical change is not a chemical change because it does not involve a change in the chemical composition of the substance.

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7.

What type of chemical change leads to the production of salt and water?
- A.
  
  Polymerization
- B.
  
  Condensation
- C.
  
  Cracking
- D.
  
  Neutralization
Correct Answer
D. Neutralization

Explanation
Neutralization is the correct answer because it refers to a chemical reaction between an acid and a base that produces salt and water as products. In this reaction, the hydrogen ions from the acid combine with the hydroxide ions from the base to form water, while the remaining ions combine to form a salt. This process is commonly observed in everyday life, such as when an antacid tablet is dissolved in water to relieve acid indigestion.

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8.

What form of chemical change involve the addition of methyl group?
- A.
  
  Polymerization
- B.
  
  Neutralization
- C.
  
  Methylation
- D.
  
  Condensation
Correct Answer
C. Methylation

Explanation
Methylation is a form of chemical change that involves the addition of a methyl group. This process occurs when a methyl group, which consists of one carbon atom bonded to three hydrogen atoms, is added to a molecule. Methylation plays a crucial role in various biological processes, such as gene expression regulation and the modification of proteins and DNA. It can also occur in synthetic reactions, where a methyl group is added to a compound to modify its properties or functionality. Therefore, methylation is the correct answer for the given question.

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9.

Which of these changes is organic?
- A.
  
  Neutralization
- B.
  
  Cracking
- C.
  
  Combustion
- D.
  
  Oxidation
Correct Answer
B. Cracking

Explanation
Cracking is the only process listed that involves the breaking down of larger molecules into smaller ones. This process is considered organic because it occurs naturally in the environment and is also used in the petroleum industry to break down larger hydrocarbon molecules into smaller ones, such as gasoline. Neutralization, combustion, and oxidation are all chemical processes, but they do not involve the breaking down of larger molecules into smaller ones, making them inorganic in nature.

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10.

Which of these changes occurs only in the presence of oxygen?
- A.
  
  Hydrogenation
- B.
  
  Oxidation
- C.
  
  Polymerization
- D.
  
  Combustion
Correct Answer
D. Combustion

Explanation
Combustion is the process of burning a substance in the presence of oxygen to produce heat, light, and often, a flame. It is a chemical reaction that occurs only in the presence of oxygen. Hydrogenation, oxidation, and polymerization can occur in the absence of oxygen as well.

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