The Structure And Properties Of Water! Chemistry Trivia Questions
What we have here are some Chemistry trivia questions on the structure and properties of water. Water is a very important component for the environment of living things and some people have gone far to say that water is indeed life. Take this interesting quiz and get to show off just how much you know about water and its properties.
Questions and Answers
- 1.
Honey is composed mostly of glucose and fructose. What property of water explains why honey dissolves easily in the water?
- A.
Water exhibits strong cohesion.
- B.
Water has a high specific heat.
- C.
Water is a polar molecule.
- D.
Water is easily ionized.
Correct Answer
C. Water is a polar molecule.Explanation
Water is a polar molecule, meaning it has a slightly positive charge on one end and a slightly negative charge on the other end. This polarity allows water molecules to attract and interact with other polar molecules, such as glucose and fructose in honey. The positive end of water molecules attracts the negative ends of the glucose and fructose molecules, causing them to dissolve easily in water.Rate this question:
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- 2.
Methane (CH4), oxygen (O2), and nitrogen (N2) are gases at room temperature. Water (H2O) has a similar molecular weight to these molecules. Why is H2O a liquid at room temperature?
- A.
H2O has a high viscosity.
- B.
H2O has a high boiling point.
- C.
Adjacent H2O molecules form hydrogen bonds.
- D.
Nonpolar covalent bonds hold H2O molecules together.
Correct Answer
B. H2O has a high boiling point.Explanation
H2O is a liquid at room temperature because it has a high boiling point. The high boiling point of water is due to the presence of hydrogen bonds between adjacent water molecules. These hydrogen bonds create strong attractions between the molecules, causing them to stick together and remain in a liquid state at room temperature.Rate this question:
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- 3.
Which of the following statements best describes how, in trees, water moves from the roots to the leaves?
- A.
Transpiration from the leaves pulls water upward.
- B.
Gravity continually pulls water and nutrients upward.
- C.
Xylem contracts and pushes water and nutrients upward.
- D.
Trees use energy from ATP to push water and nutrients upward.
Correct Answer
A. Transpiration from the leaves pulls water upward.Explanation
Transpiration is the process by which water is lost from the leaves of a plant through small openings called stomata. This loss of water creates a suction force that pulls water upward through the xylem vessels in the plant. As water molecules evaporate from the leaves, more water is drawn up from the roots to replace it, creating a continuous flow of water from the roots to the leaves. Therefore, the statement "Transpiration from the leaves pulls water upward" best describes how water moves from the roots to the leaves in trees.Rate this question:
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- 4.
Laila wants to determine the rate at which a plant uses water. She fills a beaker with 80 mL of water and places a leafy flower stem into the beaker through a small opening in the beaker’s cap. Laila then places the beaker near a sunny window. One week later, 47 mL of water remains in the beaker. What plant process best explains the loss of water in the beaker?
- A.
Germination
- B.
Photosynthesis
- C.
Respiration
- D.
Transpiration
Correct Answer
D. TranspirationExplanation
The best explanation for the loss of water in the beaker is transpiration. Transpiration is the process by which plants lose water through their leaves. In this scenario, the leafy flower stem in the beaker would continue to undergo transpiration, causing water to evaporate from the leaves and escape through the small opening in the beaker's cap. This is supported by the fact that there is a significant decrease in the amount of water in the beaker after one week.Rate this question:
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- 5.
Which of the following characteristics of water is not a result of hydrogen bonding?
- A.
Adhesive strength
- B.
Capillarity
- C.
Cohesive strength
- D.
All of the answers are a result of hydrogen bonding
Correct Answer
D. All of the answers are a result of hydrogen bondingExplanation
All of the given characteristics of water (adhesive strength, capillarity, and cohesive strength) are a result of hydrogen bonding. Hydrogen bonding occurs between the hydrogen atoms of one water molecule and the oxygen atoms of neighboring water molecules, creating strong intermolecular forces. These forces contribute to water's adhesive strength (ability to stick to other surfaces), capillarity (ability to move against gravity in narrow spaces), and cohesive strength (ability to stick to itself). Therefore, all of the answers are a result of hydrogen bonding.Rate this question:
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- 6.
Which of the following makes up a molecule of water?
- A.
One atom of hydrogen and one atom of oxygen
- B.
One atom of sodium and one atom of chlorine
- C.
One atom of hydrogen and two atoms of oxygen
- D.
Two atoms of hydrogen and one atom of oxygen
Correct Answer
D. Two atoms of hydrogen and one atom of oxygenExplanation
A molecule of water is made up of two atoms of hydrogen and one atom of oxygen. This is because the chemical formula for water is H2O, which means there are two hydrogen atoms bonded to one oxygen atom. The arrangement of these atoms gives water its unique properties, such as its ability to dissolve many substances and its role as a solvent in biological systems.Rate this question:
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- 7.
Water molecules are polar, with the
- A.
Oxygen side being slightly positive and the hydrogen side being slightly negative.
- B.
Oxygen and hydrogen sides being slightly positive.
- C.
Oxygen and hydrogen sides being slightly negative.
- D.
Oxygen side being slightly negative and the hydrogen side being slightly positive.
Correct Answer
D. Oxygen side being slightly negative and the hydrogen side being slightly positive.Explanation
Water molecules are composed of two hydrogen atoms bonded to one oxygen atom. Oxygen is more electronegative than hydrogen, meaning it has a greater ability to attract electrons. As a result, the oxygen atom pulls the shared electrons closer to itself, creating a partial negative charge. The hydrogen atoms, on the other hand, have a partial positive charge since the shared electrons are pulled away from them. This polarity gives water its unique properties, such as its ability to form hydrogen bonds and its solvent capabilities.Rate this question:
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- 8.
The cohesiveness between water molecules is due largely to:
- A.
Hydrogen bonds.
- B.
Polar covalent bonds.
- C.
Nonpolar covalent bonds.
- D.
Ionic bonds.
- E.
Hydrophobic interactions.
Correct Answer
A. Hydrogen bonds.Explanation
The cohesiveness between water molecules is due largely to hydrogen bonds. Hydrogen bonds occur when a hydrogen atom in one molecule is attracted to an electronegative atom in another molecule. In the case of water, the oxygen atom is highly electronegative, causing the hydrogen atoms to have a partial positive charge. This allows the hydrogen atoms to form hydrogen bonds with the oxygen atoms of neighboring water molecules. These hydrogen bonds give water its unique properties, such as high surface tension and the ability to dissolve many substances.Rate this question:
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- 9.
A stalk of celery is placed in a solution of blue-colored dye. After one hour, the leaves have blue fluid in their veins. Which property of water is being demonstrated?
- A.
Adhesion and cohesion
- B.
Evaporation and cooling
- C.
Lower density as a solid than as a liquid
- D.
High specific heat
- E.
Surface tension
Correct Answer
A. Adhesion and cohesionExplanation
Adhesion and cohesion are being demonstrated in this scenario. Adhesion refers to the attraction between water molecules and other substances, in this case, the celery stalk. The water molecules are able to stick to the surface of the celery, allowing the blue-colored dye to be transported up the stalk and into the leaves. Cohesion, on the other hand, refers to the attraction between water molecules themselves. This allows the water to form a continuous column within the veins of the celery, allowing the blue fluid to flow throughout the leaves.Rate this question:
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- 10.
Which characteristic of water molecules directly contributes to the remarkable "water-walking" success of the aquatic insects pictured in the accompanying figure?
- A.
Hydrogen bonds
- B.
Capillary action
- C.
Nonpolar covalent bonds
- D.
Ionic bonds
- E.
Adhesive forces
Correct Answer
A. Hydrogen bondsExplanation
The remarkable "water-walking" success of aquatic insects can be attributed to the characteristic of water molecules known as hydrogen bonds. Hydrogen bonds are formed between the positively charged hydrogen atoms of one water molecule and the negatively charged oxygen atoms of neighboring water molecules. These bonds create surface tension, allowing the insects to distribute their weight and walk on the surface of the water without sinking.Rate this question:
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- 11.
Which property of water is described in the picture below?
- A.
Capillary action
- B.
Surface tension
- C.
Transpiration
- D.
Adhesion ONLY
Correct Answer
B. Surface tensionExplanation
The picture likely shows water droplets forming a curved shape on a surface, indicating surface tension. Surface tension is a property of water that causes the molecules at the surface to be more strongly attracted to each other than to the molecules in the air above. This attraction creates a "skin" on the surface of the water, allowing it to form droplets and resist external forces, such as gravity.Rate this question:
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- 12.
When placed in the same container, oil and water do not mix because
- A.
They are both polar.
- B.
They are both nonpolar.
- C.
Water is polar and oil in nonpolar.
- D.
Water is nonpolar and oil in polar.
Correct Answer
C. Water is polar and oil in nonpolar.Explanation
Water and oil do not mix because they have different polarities. Water is a polar molecule, meaning it has a slight positive charge on one end and a slight negative charge on the other. Oil, on the other hand, is nonpolar, meaning it does not have a charge separation. Since like dissolves like, the polar water molecules are attracted to each other and do not mix with the nonpolar oil molecules.Rate this question:
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Current Version
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Nov 16, 2023Quiz Edited by
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Sep 17, 2014Quiz Created by
Jdowdyrobinson
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