Question

please give me answers of this question ​

Answer 1

Required Answers:-

a) Pooja took a small amount of salt and dropped it in a bucket full of water. She couldn't see the salt after some time. Why?

• Salt is soluble in water. (I)

b) Sakhi touched a brick wall and then the glass of a window. She could feel a difference in the touch. Why$?$

• Both solids differs in texture. (I)

Explanation:-

a) Salt is a soluble solute in water in normal temperature and pressure. It occupies the space between the molecules of water and hence there is no change in the volume.

b) Solids can differ in texture because of the various other factors like intermolecular force of attraction and chemical bonding. This also determines their brittleness and tensile strength.

Answer 2

Answer:

Required Answer(1) :-

(a) Pooja took a small amount of salt and dropped it in a bucket full of water. She couldn't see the salt after some time. Why?

Salt is soluble in water. (a)

1. The salt is broken into smaller particles and occupy the space between particle of water.

Required Answer(2)

b) Sakhi touched a brick wall and then the glass of a window. She could feel a difference in the touch.

Why??

Both solids differs in texture (a)

This is because the solid may have different molecular structure and bonding of checmical.

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