Suggest synthesise for:

$^{32} P H_{3}, H_{3}^{32} P O_{3}$ from $C a_{3} (^{32} P O_{4})_{2}$ .

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Solution

Preparation methods,
$(i)$ Phosphine- $3 K O H + P_{4} + 3 H_{2} O ⟶ 3 K H_{2} P O_{2} + P H_{3}$
$(i i)$ Phosphoric acid- $C a_{5} (P O_{4})_{3} O H + 5 H_{2} S O_{4} ⟶ 3 H_{3} P O_{4} + H_{2} O + 5 C a S O_{4}$
$(i i i)$ Calcium Phosphate- $C a (N O_{3}) + H_{2} P O_{4} ⟶ C a_{3} (P O_{4})_{2} + H N O_{3}$

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