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  1. Which one of the following is not a fertilizer?

  2. A.

     Ammonium sulphate

    B.

     Calcium sulphate

    C.

     Calcium ammonium nitrate

    D.

     Potassium nitrate

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    Answer : Option B

    Explanation :

    Calcium sulfate is a common laboratory and industrial chemical. In the form of -anhydrite (the nearly anhydrous form), it is used as a desiccant. It is also used as a coagulant in products like tofu. The main sources of calcium sulfate are naturally occurring gypsum and anhydrite which occur at many locations worldwide as evaporites.


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