For the coagulation of a negative sol, the species below, that has the highest flocculating power is :

In the above reaction, the structural formula of (A), ''X'' and ''Y'' respectively are :

Primary, secondary and tertiary amines can be separated using:

Which of the following statement(s) is (are) incorrect reason for eutrophication?

(A) excess usage of fertilisers

(B) excess usage of detergents

(C) dense plant population in water bodies

(D) lack of nutrients in water bodies that prevent plant growth

Choose the most appropriate answer from the options given below :