LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

BIOCHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is cohesion?
A
water molecules sticking to other water molecules
B
water molecules sticking to different molecules
C
when you dissolve a substance in a solution
D
when molecules become chemically combined
Explanation: 

Detailed explanation-1: -In the case of water, hydrogen bonds form between neighboring hydrogen and oxygen atoms of adjacent water molecules. The attraction between individual water molecules creates a bond known as a hydrogen bond.

Detailed explanation-2: -Cohesion: Hydrogen Bonds Make Water Sticky The property of cohesion describes the ability of water molecules to be attracted to other water molecules, which allows water to be a “sticky” liquid.

Detailed explanation-3: -Cohesion: Water is attracted to water, and Adhesion: Water is attracted to other substances.

Detailed explanation-4: -This sticking together of like substances is called cohesion. Depending on how attracted molecules of the same substance are to one another, the substance will be more or less cohesive. Hydrogen bonds cause water to be exceptionally attracted to each other. Therefore, water is very cohesive.

Detailed explanation-5: -Cohesive forces between molecules cause the surface of a liquid to contract to the smallest possible surface area. This general effect is called surface tension.

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