Question

Fill in the following blanks (a) Milk is a .................... solution but vinegar is a .................... solution.
(b) A colloid is a ..................... mixture and its components can be separated by the technique known as ......................

Answer 1

Answer :

(a) colloidal ; true

(b) homogeneous ; centrifugation

Answer 2

a) Coloidal, true

b) Lactic, acidic

Explanation:

• Milk is a colloidal solution but vinegar is a true solution.
• A true solution is is a homogeneous mixture of two or more substances in which substance melted in solvent has the particle.
• The Vinegar is used for cooking which is having 5% of acetic acid in a water.  A lactic acid is organic acid which is white in colour.
• An acidic solution has higher concentration of hydrogen ions than water. That means a solution whose PH value is less than water.
• Examples are lemon juice and vinegar.