Superphosphate is a mixture of

  • A
    $Ca(H_2PO_4)_2 \cdot H_2O + CaCl_2 \cdot 2H_2O$
  • B
    $Ca_3(PO_4)_2 \cdot H_2O + CaCl_2 \cdot 2H_2O$
  • C
    $Ca_3(PO_4)_2 \cdot H_2O + 2CaSO_4 \cdot 2H_2O$
  • D
    $Ca(H_2PO_4)_2 \cdot H_2O + 2CaSO_4 \cdot 2H_2O$

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