Oleum is a combination of sulphur trioxide and ___ .

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Oleum is a compound containing sulphur trioxide and sulphuric acid. It is highly concentrated and corrosive in nature.

$H_{2} S O_{4} + S O_{3} \to H_{2} S_{2} O_{7}$

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Oleum is a combination of sulphur trioxide and ___ .

Q. What mass of Oxygen is combined with

9.02 g

of Sulphur in

(a) Sulphur dioxide,

S O_{2}

and
(b) Sulphur trioxide,

S O_{3}

Q. Assertion :In the Contact process, sulphur trioxide vapours are absorbed in concentrated sulphuric add and not in water to obtain sulphuric acid. Reason: Directly dissolving sulphur trioxide in water is not possible due to highly exothermic nature of the reaction. Acidic vapors are formed. Oleum is reacted with water to form conc. sulphuric ac

How are the following conversions brought about? Give equations and conditions:
(i) Sulphur trioxide to sulphuric acid.
(ii) Sulphur trioxide to oleum.
(iii) Dilute sulphuric acid to hydrogen.
(iv) Aqueous barium chloride to barium sulphate.
(v) Aqueous lead nitrate to lead sulphate.
(vi) Sodium chloride to hydrogen chloride.
(vii) Sucrose to sugar charcoal.
(viii) Oxalic acid to carbon monoxide.

Q. Oleum is formed by combining sulphuric acid with:

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Oleum is a combination of sulphur trioxide and ___ .

Oleum is a compound containing sulphur trioxide and sulphuric acid. It is highly concentrated and corrosive in nature. H2SO4+SO3→H2S2O7

Oleum is a compound containing sulphur trioxide and sulphuric acid. It is highly concentrated and corrosive in nature.

$H_{2} S O_{4} + S O_{3} \to H_{2} S_{2} O_{7}$