P-Block Elements Ques 364

Question: Repeated use of which of the following fertilizers would increase the acidity of the soil

[CBSE PMT 1998]

Options:

A) Urea

B) Potassium nitrate

C) Ammonium sulphate

D) Superphosphate of lime

Show Answer

Answer:

Correct Answer: C

Solution:

$ {{(NH_4)}_2}SO_4 $ is a salt of weak base & strong acid $ {{(NH_4)}_2}SO_4+2H_2O\to \underset{\text{Weak base}}{\mathop{2NH_4OH}}+\underset{\text{Strong acid}}{\mathop{H_2SO_4}} $



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