True / False

Oleum on hydrolysis gives sulphuric acid.

ATRUE
Correct Answer
BFALSE

Solution

The sulphuric acid reacts with its anhydride $${ SO }_{ 3 }$$ to form$${ H }_{ 2 }{ S }_{ 2 }{ O }_{ 7 }$$ called fuming sulphuric acid or oleum. Concentrations of oleum are either expressed in terms of % sulphur trioxide or % sulphuric acid, common concentrations are 40% oleum and 65% oleum.

SIMILAR QUESTIONS

p - block Elements

Sulphur trioxide is dissolved in heavy water to form a compound X. The hybridisation state of sulphur in X is :

p - block Elements

Concentrated $$H_{2}SO_{4}$$ cannot be used to prepare HBr or HI from KBr or KI because it

p - block Elements

In the following reactions assign for underlined atom for product of complete hydrolysis at R.T. A. If product is oxy acid with —ic suffix. B. If product is oxy acid with —ous suffix. C. If product are two oxy acids one with —ic suffix and another one with —ous suffix. D. If product is not oxy acid, neither with —ic suffix nor with —ous suffix. $$\underline H_2\underline SO_5+H_2O \longrightarrow H_2SO_4+H_2O_2$$

p - block Elements

In the following reactions assign for underlined atom for product of complete hydrolysis at R.T. A. If product is oxy acid with —ic suffix. B. If product is oxy acid with —ous suffix. C. If product are two oxy acids one with —ic suffix and other one with —ous suffix. D. If product is not oxy acid, neither with —ic suffix nor with —ous suffix. $$H_2\underline S_2O_7+H_2O \longrightarrow H_2SO_4$$

p - block Elements

In the following reactions assign for underlined atom for product of complete hydrolysis at R.T. A. If product is oxy acid with —ic suffix. B. If product is oxy acid with —ous suffix. C. If product are two oxy acids one with —ic suffix and other one with —ous suffix. D. If product is not oxy acid, neither with —ic suffix nor with —ous suffix. $$H_2\underline S_2O_8+H_2O \longrightarrow H_2SO_4+H_2O_2$$

p - block Elements

In the following reactions assign for underlined atom for product of complete hydrolysis at R.T. A. If product is oxy acid with —ic suffix. B. If product is oxy acid with —ous suffix. C. If product are two oxy acids one with —ic suffix and otherone with —ous suffix. D. If product is not oxy acid, neither with —ic suffix nor with —ous suffix. $$\underline SO_Cl_2+H_2O \longrightarrow H_2SO_4+HCl$$

p - block Elements

In the following reactions assign for underlined atom for product of complete hydrolysis at R.T. A. If product is oxy acid with —ic suffix. B. If product is oxy acid with —ous suffix. C. If product are two oxy acids one with —ic suffix and otherone with —ous suffix. D. If product is not oxy acid, neither with —ic suffix nor with —ous suffix. $$\underline SOF_4+H_2O \longrightarrow H_2SO_4+HF$$

p - block Elements

Sulphur on reaction with concentrated $$HNO_{3}$$ gives $$(A)$$ which reacts with $$NaOH$$ gives $$(B).$$ $$(A)$$ and $$(B)$$ are:

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