Question
Ferric phosphate:

Answer

Step -1 : To write the symbols of the radicals (Basic radicals on the left and acidic radicals on the right)
$Fe PO_4$
Step – 2 : To write the valency below the respective radical.
Maharashtra Board Class 9 Science Solutions Chapter 4 Measurement of Matter 43
Step – 3: To cross-multiply as shown by arrows the number of radicals.
Maharashtra Board Class 9 Science Solutions Chapter 4 Measurement of Matter 44
Step – 4 : To write down the chemical formula of the compound.
$FePO_4$​​​​​​​
(Ferric phosphate)

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