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Solution of SO(2) in water is known as...

Solution of `SO_(2)` in water is known as

A

Sulphric acid

B

Sulphurous acid

C

Hydrosulphuric acid

D

Thiosulphurous acid

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The correct Answer is:
B
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Oleum is mixture of H_(2)SO_(4) and SO_(3) i.e. H_(2)S_(2)O_(7) which is obtained by passing SO_(3) is solution of H_(2)SO_(4) . In order to dissolve SO_(3) in oleum, dilution of oleum is done by water in which oleum is converted into pure H_(2)SO as shown below: H_(2)SO_(4)+SO_(3)+H_(2)Oto2H_(2)SO_(4) (pure) When 100 gm oleum is diluted with water then total mass of diluted oleum is known as percentage labelling in oleum. For example: 109% H_(2)SO_(4) labelling of oleum sample means that 109 gm pure H_(2)SO_(4) is obtained on diluting 100 gm oleum with 9 gm H_(2)O which dissolves al free SO_(3) in oleum. If the number of moles of free SO_(3), H_(2)SO_(4) , and H_(2)O be x, y and z respectively in 118% H_(2)SO_(4) labelled oleum, the value of (x+y+z) is

Oleum is mixture of H_(2)SO_(4) and SO_(3) i.e. H_(2)S_(2)O_(7) which is obtained by passing SO_(3) is solution of H_(2)SO_(4) . In order to dissolve SO_(3) in oleum, dilution of oleum is done by water in which oleum is converted into pure H_(2)SO as shown below: H_(2)SO_(4)+SO_(3)+H_(2)Oto2H_(2)SO_(4) (pure) When 100 gm oleum is diluted with water then total mass of diluted oleum is known as percentage labelling in oleum. For example: 109% H_(2)SO_(4) labelling of oleum sample means that 109 gm pure H_(2)SO_(4) is obtained on diluting 100 gm oleum with 9 gm H_(2)O which dissolves al free SO_(3) in oleum. If 109% H_(2)SO_(4) labelled oleum, the percent of free SO_(3) and H_(2)SO_(4) are

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SIA PUBLICATION-MOCK TEST 1-CHEMISTRY
  1. The Markownikoff's rule is best applicable to the reaction between

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  2. Which one of the following pairs of ions has the same electronic confi...

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  3. Solution of SO(2) in water is known as

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  4. Which of the following statement is correct ?

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  5. Which of the following does not exhibit inert pair effect ?

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  6. Potassium superoxide is used in oxygen cylinders in space and submarin...

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  7. Which of the following is not correct regarding the electrolytic prepa...

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  8. Which of the following is correct ?

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  9. In exothermic reaction

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  10. In which of the following the oxidation state of chlorine is +5?

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  11. A : K(4)[Fe(CN(6))] is diamagnetic R: The alignments of magnetic di...

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  12. Water drop stick to a glass suface due to

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  13. If thermal energy predominates over intermolecular forces, then the su...

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  14. The hybridisation of central atom is sp^(3)d^(2) in

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  15. The formal charges on the three oxygen atoms in O(3) molecule are

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  16. Among the elements A,B,C and D having atomic numbers 9,10,11 and 12 re...

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  17. The following are some statements about Mendeleev's peridioc table (...

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  18. Transition metal " X " has a configuration [Ar] 3d^(4) in its +3 oxida...

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  19. The wave number of limiting line in Balmer series of hydrogen atoms is

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  20. Which on oxidation will not give a carboxylic acid with the same numbe...

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