
Write the formula of Pyrosulphuric acid:
Answer
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Hint: We know that disulfuric acid is otherwise called as pyrosulfuric acid. It is an example of sulfur oxoacid. The salts of disulfur acids are pyrosulfates. An example of pyrosulfate is potassium pyrosulfate.
Complete step by step answer:
We have to know that the IUPAC name of pyrosulfuric acid is disulfuric acid. Oleum is the other name given to pyrosulfuric acid.
In pyrosulfuric acid, there are two atoms of sulfur, seven atoms of oxygen and two atoms of hydrogens. We can draw the structure of pyrosulfuric acid,
From the given structure, we can see that each sulfur atom is doubled bonded to two oxygen atoms and single bonded to other oxygen atoms. The oxidation state of sulfur in pyrosulfuric acid is
We can prepare pyrosulfuric acid by the dissolution of fumes of sulfur trioxide in sulfuric acid.
We can write the chemical reaction as,
The chemical formula of pyrosulfuric acid is Therefore, Option (A) is correct.
The compound that has a chemical formula of is peroxymonosulfuric acid. It is also an oxyacid of sulfur. Option (B) is incorrect.
The chemical formula represents peroxydisulfuric acid. It is also an oxoacid of sulfur.
Hence option (C) is correct.
Note:
We can write the IUPAC name of peroxymonosulfuric acid as peroxydisulfuric acid (or) sulfurperoxic acid. Peroxymonosulfuric acid is used as disinfectant and cleaning in swimming pools. Salts of peroxymonosulfuric acid are used in the plastic industry and for decolorizing oils.
We can write the IUPAC name of peroxydisulfuric acid as persulfuric acid. It Is also known as Marshall’s acid.
Complete step by step answer:
We have to know that the IUPAC name of pyrosulfuric acid is disulfuric acid. Oleum is the other name given to pyrosulfuric acid.
In pyrosulfuric acid, there are two atoms of sulfur, seven atoms of oxygen and two atoms of hydrogens. We can draw the structure of pyrosulfuric acid,

From the given structure, we can see that each sulfur atom is doubled bonded to two oxygen atoms and single bonded to other oxygen atoms. The oxidation state of sulfur in pyrosulfuric acid is
We can prepare pyrosulfuric acid by the dissolution of fumes of sulfur trioxide in sulfuric acid.
We can write the chemical reaction as,
The chemical formula of pyrosulfuric acid is
The compound that has a chemical formula of
The chemical formula
Hence option (C) is correct.
Note:
We can write the IUPAC name of peroxymonosulfuric acid as peroxydisulfuric acid (or) sulfurperoxic acid. Peroxymonosulfuric acid is used as disinfectant and cleaning in swimming pools. Salts of peroxymonosulfuric acid are used in the plastic industry and for decolorizing oils.
We can write the IUPAC name of peroxydisulfuric acid as persulfuric acid. It Is also known as Marshall’s acid.
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