E - 450
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 :

(DIPHOSPHATES)
(i)  
(Disodium diphosphate)
(ii)  
(Trisodium diphosphate)
(iii)  
(Tetrasodium diphosphate)
(iv)  
(Dipotassium diphosphate)
(v)  
(Tetrapotassium diphosphate)
(vi)  
(Dicalcium diphosphate)
(vii)  
(Calcium dihydrogen diphosphate)
(viii)  
(Dimagnesium diphosphate)
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