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Four one litre flasks are seperately fil...

Four one litre flasks are seperately filled with gases `O_2,F_2, CH_4 and CO_2` under same conditions. The ratio of number of molecules in these flasks is 

A

`2 :2:4 :3`

B

`1:1:1:1`

C

`1:2:3:4`

D

`2:2:3:4`

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The correct Answer is:
B
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AAKASH SERIES-STATES OF MATTER-OBJECTIVE EXERCISE -2
  1. When the pressure of 2 litres of O2 gas is  doubled and its temperatur...

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  2. If one mole of a gas A (mol.wt-40) occupies a volume of 201itres, unde...

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  3. Four one litre flasks are seperately filled with gases O2,F2, CH4 and ...

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  4. The weight of one litre of a gas at latm pressure and 300K is 4g. At w...

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  5. The Molecular weight of a gas is 40. At 400K if 120 g of this gas has ...

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  6. At 127°C and latm pressure, a mixture of a gas contains 0.3 mole of N(...

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  7. 'X’ moles of N2 gas at S.T.P. conditions occupy a volume of 10 litres,...

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  8. A gaseous mixture containing 0.35g of N(2) and 5600 ml of O(2) at ST...

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  9. Balloons of 4L capacity are to be filled with Hydrogen at a pressure o...

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  10. A steel cylinder of 8 litres capacity contain hydrogen gas at 12atm pr...

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  11. An open vessel at 27^@C is heated until three-fourths mass of the air ...

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  12. An open flaskh has Helium gas at 2 atm and 327^@C. The flask is heated...

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  13. A gas cylinder withstands a pressure of 14.9 atm. Its pressure gauze i...

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  14. When 2g of a gas A is introduced into an evacuated flask kept at 25°C,...

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  15. The vapour density of a gas is 11.2. The volume occupied by 10g of the...

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  16. 112ml. of oxygen at STP is subjected to liquefication. The mass of liq...

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  17. "m" is the mass of a molecule, "k" is the Boltzmann constant, P is the...

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  18. The density of a gas at 27°C and 1 atm is d. Pressure remaining consta...

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  19. A steel cylinder of 8 litres capacity contain hydrogen gas at 12atm pr...

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  20. A glass tube of volume 112ml. containing a gas is partially evacuated ...

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