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(A) : H(2)SO(4) is called king of chemic...

(A) : `H_(2)SO_(4)` is called king of chemicals
(R ) : `H_(2)SO_(4)` has wide range of applications in industries.

A

Both (A) and (R ) are true and (R ) is the correct explanation of (A)

B

Both (A) and (R ) are true and (R ) is not the correct explanation of (A)

C

(A) is true but (R ) is false

D

(A) is false but (R ) is true

Text Solution

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The correct Answer is:
A
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(A) H_(2) SO _(4) is used in the preparation of HCl from NaCl (R ) H _(2) SO _(4) is lower volatile cid than HCl

Low volatile nature of H_(2)SO_(4) is due to

H_(2)SO_(4) has great affinity for water because

Oleum or fuming H_(2)SO_(4) 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 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

AAKASH SERIES-VIA GROUP ELEMENTS-LEVEL-I (EXERCISE)
  1. Poison for platinum, a catalyst in Contact process is

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  2. In Contact process impurities of arsenic are removed by:

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  3. (A) : H(2)SO(4) is called king of chemicals (R ) : H(2)SO(4) has wid...

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  4. Pick out the ideal condition for H(2)SO(4) manufactured by Contact pro...

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  5. Oxide of nitrogen used as a catalyst in the lead chamber process for t...

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  6. (A): Direct absorption of SO(3) in H(2)O is commercially not possible ...

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  7. The advantage of manufacturing H(2)SO(4) by Contact process than other...

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  8. (A) The formation of SO(3) by contact process is an example of heterog...

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  9. The electrolyte used in the preparation of ozone by Brodie's ozoniser...

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  10. O(3) is prepared by subjecting 0, to silent electric discharge. The fa...

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  11. Mercury sticks to glass when it comes in contact with

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  12. The compound formed in the tailing of mercury by O(3) is

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  13. Ozone does not give oxygen when reacted with

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  14. Dry bleaching agent is

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  15. Ozone blackens bright silver foil. Here the reaction involved

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  16. A black compound 'X' when treated with O(3) turned white. The compound...

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  17. The O-O bond length in Ozone is

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  18. With respect to both oxygen and ozone, which one of the following stat...

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  19. In which of the following reactions ozone acts as a reducing agent?

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  20. Which one of the following reactions does not occur?

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