OBJECTIVE LIFE SCIENCE
BIOCHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Nonpolar covalent bonds that enable water to dissolve other substances
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Polar covalent bonds that join molecules of water to other substances
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Hydrogen bonds between water and another substance
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Ionic bonds that enable electrons to flow through water and into another substance
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Detailed explanation-1: -Capillary action occurs because water is sticky, thanks to the forces of cohesion (water molecules like to stay close together) and adhesion (water molecules are attracted and stick to other substances).
Detailed explanation-2: -Water molecules are bent so the hydrogen atoms are to one side of the oxygen atom. and when it come to molecules opposites attract. A bond forms between the negative side of one water molecule and the positive side of another. At that is what gives water its stickiness.
Detailed explanation-3: -Water is adhesive to the glass capillary tubes due to hydrogen bonding. The adhesion of the water to the glass causes the water to climb up the sides of the tube, forming a concave meniscus.
Detailed explanation-4: -Capillarity starts when the water molecules nearest the wall of the tube are attracted to the tube more strongly than to other water molecules. The water molecules nearest the glass wall of the tube rise up the side (adhesion), dragging other water molecules with them (cohesion).
Detailed explanation-5: -Hydrogen bonds are attractions of electrostatic force caused by the difference in charge between slightly positive hydrogen ions and other, slightly negative ions. In the case of water, hydrogen bonds form between neighboring hydrogen and oxygen atoms of adjacent water molecules.