Question

( 16) Which fertilizer produce acidity in soil
A.Ammonium sulfate
B.Sodium nitrate
C.Calcium ammonium nitrate
D.Calcium nitrate​

Answer 1

Answer

Option 'A' : Ammonium Sulphate

Explanation

Regular use of ammonium sulphate increases the acidity of soil. The hydrolysis of ammonium sulphate produces sulphuric acid which increases the acidity of soil.

$\sf(NH_4 )_2 SO_4 \rightarrow \: 2NH_3 \: +H_ 2SO_4$

To prevent acidity, slaked lime is added to neutralize the acid.