Superphosphate of lime is obtained from the reaction of :

Superphosphate of lime is obtained from the reaction of :
  1. Bones with gypsum.
  2. Calcium phosphate with sulphuric acid.
  3. Calcium phosphate with HCl.
  4. Calcium carbonate with phosphoric acid.

Solution

$\begin{aligned} \mathrm{Ca}_{3} &\left(\mathrm{PO}_{4}ight)_{2}+2 \mathrm{H}_{2} \mathrm{SO}_{4}+5 \mathrm{H}_{2} \mathrm{O} ightarrow \\ & \mathrm{Ca}\left(\mathrm{H}_{2} \mathrm{PO}_{4}ight)_{2} \cdot \mathrm{H}_{2} \mathrm{O}+2 \mathrm{CaSO}_{4} \cdot 2 \mathrm{H}_{2} \mathrm{O} \end{aligned}$ /

Asked in: JEE-TOPICTESTS-CHEMISTRY

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