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}} $
