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NEET levelSingle correct optionDifficulty 1 of 3bn114

What is the IUPAC (Stock notation) name of $CuSO X_{4} \cdot 5 H X_{2} O$ ?

Acopper(II) sulfate pentahydrate
Bcopper(I) sulfate pentahydrate
Ccopper(II) sulfite pentahydrate
Dcopper(II) sulfate hexahydrate

Answer: A

The sulfate ion is

- 2

, so copper must be

+ 2

, written copper(II). Five water molecules are named with the Greek prefix penta-: copper(II) sulfate pentahydrate.

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