A fertiliser contains ammonium nitrate and potassium phosphate. Why is the fertiliser described as an NPK fertiliser? 0620_w24_qp_23 MCQ 2024 Paper 2, Variant 3 View
A student writes three statements about potassium nitrate, KNO3. The relative formula mass of KNO3 is 101. Potassium nitrate contains the three essential elements for plant growth. Potassium nitrate could be used as a fertiliser. Which statements are correct? 0620_s21_qp_11 MCQ 2021 Paper 1, Variant 1 View