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Statement I : Balloons made by nylon fil...

Statement I : Balloons made by nylon films are better for containing helium than the conventional rubber balloons.
Statement II : R.M.S. velocity of helium is very high. So helium atom can effuse out through rubber balloons.

A

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

B

Both A and R are true but R is not a correct explanation of A

C

A is true but R is false

D

A is false but R is true

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The correct Answer is:
A
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DINESH PUBLICATION-STATE OF MATTER (GASEOUS AND LIQUID STATE)-Assertion Reason
  1. Assertion :The ratio of volume of gaseous reactants and products is in...

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  2. Assertion : One mole of helium atoms should occupy 22.4 litres volume ...

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  3. Assertion : A sample of 8.00 mole of chlorine gas in 94.00 litre tank ...

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  4. Assertion : The pressure of a gas is inversely proportional to the vol...

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  5. Assertion : The reacting gases combine in volumes that are ratios of s...

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  6. Assertion : The value of van der Waal's constant a is larger for ammon...

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  7. Assertion : At zero kelvin the volume occupied by a gas is negligible ...

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  8. Assertion : The pressure of real gas is less than the pressure of idea...

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  9. Assertion : When helium is allowed to expands into vacuum, heating eff...

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  10. Assertion : For a certain fixed amount of gas the product PV is always...

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  11. Assertion : The ratio C(P)//C(upsilon) is more for helium gas than for...

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  12. Assertion: Noble gases can be liquefied. Reason: Attractive forces c...

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  13. Assertion : Different gases at the same conditions of temperature and ...

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  14. Statement I : Balloons made by nylon films are better for containing h...

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  15. Assertion : Equal volumes of all gases under similar conditions of tem...

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  16. Assertion : Boyle's law expresses in a quanatitative manner the import...

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  17. Assertion : At higher peaks of mountains, people suffer from high alti...

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  18. Assertion : The use of hot air balloons in sports and for meterologic...

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  19. Assertion : Gas constant R = lite atmosphere "deg"^(-1) mol^(-1) Rea...

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  20. Assertion : The pressure of a given mass of a gas is directly proporti...

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