Question

please tell this answer right now​

Answer 1

Answer:

1)why is the separation of pure substance essential?

-: To obtain oxygen in its pure form and remove impurities from it, we need to separate it from the air. This is why separation of substances is necessary

2)the method of purification used for solid

-:Crystallization is the most commonly used method for the process of purification of solids. In this method, impure substances are dissolved in minimum amount of water and then filtered.

Answer 2

Answer:

1)why is the separation of pure substance essential?

-: To obtain oxygen in its pure form and remove impurities from it, we need to separate it from the air. This is why separation of substances is necessary

2)the method of purification used for solid

-:Crystallization is the most commonly used method for the process of purification of solids. In this method, impure substances are dissolved in minimum amount of water and then filtered.