The scum formed when soap is mixed with hard water could be

The scum formed when soap is mixed with hard water could be
  • A.
    calcium trioxocarbonate (IV)
  • B.
    propane- 1, 2, 3 – triol
  • C.
    calcium hydrogentrioxocarbonate (IV)
  • D.
    magnesium tetraoxosulphate (IV)
  • E.
    calcium stearate
Correct Answer: Option A
Explanation
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