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The noble gas mixture is cooled in a coc...

The noble gas mixture is cooled in a coconut bulb at 173K. The gases that are not adsorbs are

A

Ne and Xe

B

He and Xe

C

Ar and Kr

D

He and Ne

Text Solution

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The correct Answer is:
C
Among the C-X bond ( where , X=Cl, Br, I), the correct decreasing order of bond energy is `C-Cl gt C -Br gt C-I` .
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Noble gases are adsorbed by

A noble gas which is not absorbed by coconut charcoal is

Whenever a mixture of gases is allowed to come in contact with a particular adsorbent under the same conditions, the more strong adsorbate is adsorbed to greater extent irrespective of its amount present, e.g. H_(2)O is adsorbed to more extent on silica gel than N_(2) and O_(2) . This shows that some adsorbates are preferentially adsorbed. It is also observed that preferentially adsorbable adsorbent can displace a weakly adsorbed substance from the surface of an adsorbent. Which of the gas can displace remaining all the gases.

The adsorption of a gas at a metal surface is called occlusion. The extent of gas adsorbed at metal surface at a certain temperature depends on pressure as (x)/(m)=K.P^(1//n) where K and n are constant for a particular combination of gas and metal at fixed temperature and (x)/(m) is the mass of gas adsorbed per unit mass of metal .For H_(2) gas adsorbing at Pt-surface, the following graph is obtained. The mass of H_(2) gas adsorbed on the surface of 10 gm Pt at 16 atm is :

The adsorption of a gas at a metal surface is called occlusion. The extent of gas adsorbed at metal surface at a certain temperature depends on pressure as (x)/(m)=K.P^(1//n) where K and n are constant for a particular combination of gas and metal at fixed temperature and (x)/(m) is the mass of gas adsorbed per unit mass of metal .For H_(2) gas adsorbing at Pt-surface, the following graph is obtained. The correct values of K and n are respectively.

Whenever a mixture of gases is allowed to come in contact with a particular adsorbent under the same conditions, the more strong adsorbate is adsorbed to greater extent irrespective of its amount present, e.g., H_(2)O is adsorbed to more extent on silica gel than N_(2) and O_(2) . This shows that some adsorbates are preferentially adsorbed. It is also observed that preferentially adsorbable adsorbent can displace a weakly adsorbed substance from the surface of an adsorbent. Preferential adsorption depends on strength of attraction, surface area, polar nature and other factors. Which of the following isomer of C_(6)H_(14) is adsorbed to maximum extent?

Whenever a mixture of gases is allowed to come in contact with a particular adsorbent under the same conditions, the more strong adsorbate is adsorbed to greater extent irrespective of its amount present, e.g., H_(2)O is adsorbed to more extent on silica gel than N_(2) and O_(2) . This shows that some adsorbates are preferentially adsorbed. It is also observed that preferentially adsorbable adsorbent can displace a weakly adsorbed substance from the surface of an adsorbent. Preferential adsorption depends on strength of attraction, surface area, polar nature and other factors.

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-P-BLOCK ELEMENTS -Exercise 2
  1. Sulphur does not exist as S2 molecule because

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  2. SO(2) does not act as a/an

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  3. The noble gas mixture is cooled in a coconut bulb at 173K. The gases ...

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  4. Among the C-X bond (where, X=Cl,Br,I) the correct decreasing order of ...

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  5. Bond length is maximum in

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  6. Reduction potentials of some ions are given below. Arrange them in dec...

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  7. When PbO(2) reacts with conc. HNO(3) the gas evolved is

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  8. On heating Pb(NO3)2 the products formed ate :

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  9. The correct formula of salt formed by the neutraliation of hypophosph...

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  10. Zinc and cold dil. HNO(3) reacts to produce

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  11. Iron is dropped in dil. HNO(3) , it gives

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  12. When tin is treated with concentrated nitric acid

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  13. Among the following, the number of compounds that can react with PCl(5...

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  14. Among the following , the correct statement is

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  15. The number of P-P-P bridges in the structure of phosphorus pentoxide...

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  16. Consider the following statements, I. Fluorine forms two oxides OF(2...

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  17. The following acids have been arranged in order of decreasing acid str...

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  18. NH3 gas is dried over

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  19. Which one of the following compounds has the smallest bond angle in i...

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  20. Number of sigma bonds in P4 O(10) is :

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