52.
Milk is a natural

53.
Emulsifier is an agent which

55.
Muddy water is treated with alum in purification process, it is termed as :

56.
Which one of the following is an example of a gel ?

57.
A substance which readily forms colloidal solution in contact with water is called

58.
Peptization is a process of

59.
What do you understand by the term Espuma ?

60.
Cloud is a colloidal dispersion of