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In a glass tube, the meniscus of water is concave, whereas the meniscus of mercury is convex. Select the statement that explains the difference in the shape of the menisci.

a. The meniscus of water is concave because the cohesive forces are greater than the adhesive forces.
b. The meniscus of mercury is convex because the adhesive forces are greater than the cohesive forces. The shape of the menisci are unrelated to the adhesive and cohesive forces.
c. The meniscus of water is concave because the adhesive forces are greater than the cohesive forces. The meniscus of mercury is convex because the cohesive forces are greater than the adhesive forces.
d. The meniscus of water is concave because the adhesive forces are smaller than the cohesive forces. The meniscus of mercury is convex because the cohesive forces are stronger than the adhesive forces.
e. The meniscus of water is concave because the adhesive forces are greater than the cohesive forces. The meniscus of mercury is convex because the cohesive forces are smaller than the adhesive forces.

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Answer:

A

Explanation:

A concave meniscus occurs when the molecules of the liquid are attracted to those of the glass tube.

This occurs with liquid and a glass tube. A convex is the curve area of the sphere.

The correct answer is A.

The cohesive force is the attracting force between the two particles of the same substance while the adhesive force is the attracting force between the two particles of the unlike substance.

These two forces form the concave meniscus in the glass tube.

Hence, the correct option is A that is the meniscus of water is concave because the cohesive forces are greater than the adhesive forces.

For more information, refer to the link:-

https://brainly.com/question/3523174

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