Home
Class 11
CHEMISTRY
The density of a gas is 1.964 g dm^(-3) ...

The density of a gas is 1.964 g `dm^(-3)` at 273 K and 76 cm Hg. The gas is

A

Xe

B

`CO_(2)`

C

`C_(2)H_(6)`

D

`CH_(4)`

Text Solution

Verified by Experts

The correct Answer is:
B

`M=(dRT)/(p)=(1.964xx0.082xx273)/(76//76)=44`
`therefore" It corresponds to "CO_(2)`.
Promotional Banner

Topper's Solved these Questions

  • STATES OF MATTER : GASES AND LIQUIDS

    MODERN PUBLICATION|Exercise COMPETITION FILE OBJECTIVE TYPE QUESTIONS (B. MULTIPLE CHOICE QUESTIONS)|32 Videos
  • STATES OF MATTER : GASES AND LIQUIDS

    MODERN PUBLICATION|Exercise COMPETITION FILE OBJECTIVE TYPE QUESTIONS (B. MULTIPLE CHOICE QUESTIONS)(JEE (MAIN) & OTHER STATE BOARDS FOR ENGINEERING ENTRANCE)|44 Videos
  • STATES OF MATTER : GASES AND LIQUIDS

    MODERN PUBLICATION|Exercise HIGHER ORDER THINKING SKILLS (ADVANCED LEVEL)|19 Videos
  • SOME BASIC CONCEPTS OF CHEMISTRY

    MODERN PUBLICATION|Exercise COMPETITION FILE (INTEGER TYPE AND NUMERICAL VALUE TYPE QUESTIONS)|10 Videos
  • STRUCTURE OF ATOM

    MODERN PUBLICATION|Exercise Unit Practice Test|13 Videos

Similar Questions

Explore conceptually related problems

The density of a gas is 1.964 g 1 dm^(-3) at 273 K and 76 cm Hg . The gas is

The density of a gas is found to be 1.56 g dm^(-3) at 0.98 bar pressure and 65^(@)C . Calculate the molar mass of the gas.

The density of an ideal gas is 1.25xx10^(-3)g cm^(-3) at STP. Calculate the molecular weight of the gas.

The density of air of 0.001293 g//cm^(3) at 1 atm and 273 K. Identify which of the following statement is correct?

The density of phosphine gas is "1.27 g dm"^(-3) at 50^(@)C and 0.987xx10^(5)Pa. Calculate its molar mass.

At 30^(@)C and 720 mm and Hg, the density of a gas is 1.5 g// l t . Calculate molecular mass of the gas. Also find the number of molecules in 1 cc of the gas at the same temperature.

MODERN PUBLICATION-STATES OF MATTER : GASES AND LIQUIDS-COMPETITION FILE OBJECTIVE TYPE QUESTIONS (A. MULTIPLE CHOICE QUESTIONS)
  1. At constant temperature, the pressure of V mL of a dry gas was increas...

    Text Solution

    |

  2. Equal masses of CH(4) and H(2) are mixed in an empty chamber. The part...

    Text Solution

    |

  3. The density of a gas is 1.964 g dm^(-3) at 273 K and 76 cm Hg. The gas...

    Text Solution

    |

  4. the interaction energy of London force is inversely proportional to si...

    Text Solution

    |

  5. For a given mass of a gas at constant temperature, if the volume V bec...

    Text Solution

    |

  6. An open vessel at 37^(@)C is heated until 3//5 of the air in it has be...

    Text Solution

    |

  7. If air contains N(2) and O(2) in volume ratio 4 : 1, the average vapou...

    Text Solution

    |

  8. The gases H(2),N(2) , O(2) and NH(3) will diffuse in the order :

    Text Solution

    |

  9. In what ratio by mass, sulphur trioxide and nitrogen should be mixed s...

    Text Solution

    |

  10. 20%N(2)O(4) molecules are dissociated in a sample of gas at 27^(@)C an...

    Text Solution

    |

  11. According to Graham's law, at a given temperature, the ratio of the ra...

    Text Solution

    |

  12. A person living in Shimla observed that cooking without using pressure...

    Text Solution

    |

  13. On a humid day, the mole fraction of water vapour in air at 298 K is 0...

    Text Solution

    |

  14. The pyknometric density of NaCl crystal is 2.165 xx 10^(3 kg m^(-3) wh...

    Text Solution

    |

  15. The rate of diffusion of methane is twice that of X. The molecular mas...

    Text Solution

    |

  16. Boyle's law may be expressed as

    Text Solution

    |

  17. The ratio of root mean square velocity of average velocity of a gas mo...

    Text Solution

    |

  18. The ratio of average speed of an oxygen molecule to the r.m.s. speed o...

    Text Solution

    |

  19. The molecules of a gas A travel four times faster than the molecules o...

    Text Solution

    |

  20. The RMS velocity of CH(4) will become double its value at STP when the...

    Text Solution

    |