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Why is H(2)S less acidic than H(2)Te ?...

Why is `H_(2)S` less acidic than `H_(2)Te` ?

A

Less dissociation enthalpy of `H_(2)S`

B

More dissociation enthalpy of `H_(2)S`

C

Molecular weight of `H_(2)S` is less

D

Melting point of `H_(2)S` is less

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The correct Answer is:
B
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(a) Write the balanced chemical equations for obtaining XeO_(3) " and " XeOF_(4) "from "XeF_(6). (b) Account for the followingk : (i) H_(2)S is less acidic then H_(2) Te. (ii) H_(3)PO_(2) has reducing nature. (iii) SO_(2) is an air pollutant.

Why is H_(2)S more acidic than water ?

H_(2)S is. more acidic than H_(2)O because

(a) Elements of group 16 generally show lower value of first ionisation enthalpy as compared to the corresponding periods of group 15 . Why ? (b) H_2 S is less than acidic than H_2 Te . Why ?

NARAYNA-16TH GROUP ELEMENTS-LEVEL-III
  1. In the laboratory H(2)S is prepared by the action of

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  2. The statements regarding hydrides of VIA group elements are i) The o...

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  3. Why is H(2)S less acidic than H(2)Te ?

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  4. Oxyen is more eletrongative than sulphur, yet H(2)S is acidic while H(...

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  5. Which of the following statement is wrong?

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  6. Cyclic trimer structure of SO(3) contains:

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  7. Iron sulphide is heated in air to form A, an oxide of sulphur. A is d...

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  8. Which of the following equations repreaents the oxidising action of su...

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  9. Which of the following statements regarding sulphur dioxide is not tru...

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  10. One gas bleaches the colour of flowers by reduction and other by oxida...

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  11. SO(2) gas can be identified by exposing it to the

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  12. SO(2) acts as ,

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  13. Which one of the following is/are suboxides?

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  14. Number of S-O-S bonds and hybridisation of sulphur in gamma-form of su...

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  15. Mustard gas is prepared by the reation of ethylene with

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  16. When cobalt trifluoride is treated with sulphur, the compound formed i...

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  17. Monohalides of selenium are dimeric in nature. Selenium monochloride u...

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  18. The number of S - S bonds in polythionic acid (H(2)S(n)O(6))

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  19. Identify the correct sequence of increasing of pi- bonds in the struct...

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  20. Which of the following acids doesnot exists in the free form ?

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