BCS 2.1.3 water and sugars

What type of bond holds water molecules together in ice?

• Covalent bond
• Hydrogen bond
• Ionic bond
• Van der Waals bond
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Which property of water allows it to resist temperature changes effectively?

• High specific heat capacity
• Low boiling point
• Low surface tension
• High polarity
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What property of water is responsible for the meniscus formation in a graduated cylinder?

• Adhesion
• Cohesion
• Surface tension
• Capillarity
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When water vaporizes, it absorbs a large amount of heat without a significant temperature increase. What is this phenomenon called?

• Specific heat capacity
• Latent heat of vaporization
• Boiling point
• Freezing point
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What is the heat energy required to raise the temperature of 1 gram of water by 1 degree Celsius?

• 1 calorie
• 1 joule
• 1 kilocalorie
• 1 kilojoule
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What is the primary type of bond between the oxygen and hydrogen atoms within a water molecule?

• Covalent bond
• Hydrogen bond
• Ionic bond
• Van der Waals bond
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In which state (solid, liquid, or gas) is water at its most dense?

• Liquid
• Solid (Ice)
• Gas
• It remains the same density in all states
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What happens to water molecules when they freeze (turn into ice)?

• They form a hexagonal lattice due to hydrogen bonding
• They break apart into individual molecules
• They become denser
• They evaporate into the air
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What type of bond forms when two monosaccharides (simple sugars) are joined together?

• Glycosidic bond
• Peptide bond
• Phosphodiester bond
• Hydrogen bond
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Which disaccharide is composed of one glucose molecule and one fructose molecule joined by a glycosidic bond?

• Sucrose
• Lactose
• Maltose
• Galactose
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