Equilibrium

Equilibrium

Question

Regular use of which of the following fertilizers increases the acidity of soil ?

  • Potassium nitrate

  • Urea

  • Superphosphate of lime

  • Ammonium sulphate

Answer

D.

Ammonium sulphate

(NH4)2 SO4 is a salt of the strong acid and weak base, on hydrolysis it ill produce H+ ion. This will increase the acidity of the soil.
left parenthesis NH subscript 4 right parenthesis subscript 2 SO subscript 4 space rightwards arrow with space on top space 2 NH subscript 4 superscript plus space plus space SO subscript 4 superscript 2 minus end superscript
NH subscript 4 superscript plus space plus space straight H subscript 2 straight O space rightwards harpoon over leftwards harpoon with space space on top space NH subscript 4 OH space plus straight H to the power of plus

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