Home
Class 12
CHEMISTRY
0.30g of an organic compound containing ...

`0.30g` of an organic compound containing `C`, `H` and Oxygen on combustion yields `0.44g CO_(2)` and `0.18g H_(2)O`. If one mole of compound weighs `60`, then molecular formula of the compound is

A

`C_(3)H_(8)O`

B

`C_(2)H_(4)O_(2)`

C

`CH_(2)O`

D

`C_(4)H_(6)O`

Text Solution

Verified by Experts

The correct Answer is:
B
Percentage of `C=(12)/(44)xx(0.44)/(0.30)xx100=40%`
Percentage of `=(2)/(18)xx(0.18)/(0.30)xx100=6.6%`
percentate of `O=100-(40+6.6)=53.4%`

Hence, empirical formula `=CH_(2)O`
`n=("Molecular mass")/("Empirical formula mass")=(60)/(30)=2`
`rArr` Molecular formula of compound `=(CH_(2)O)_(2)`
`=C_(2)H_(4)O_(2)`
Promotional Banner

Topper's Solved these Questions

  • KARNATAKA CET 2014

    KCET PREVIOUS YEAR PAPERS|Exercise CHEMISTRY|58 Videos

  • KARNATAKA CET 2017

    KCET PREVIOUS YEAR PAPERS|Exercise CHEMISTRY|60 Videos

Similar Questions

Explore conceptually related problems

0.30g of an organic compound contaiining C, H and Oxygen an combustion yields 0.44g CO_2 and 0.18g H_2O . If one mol of compound weight 60, then molecular formula of the compound is

0.2 g of an organic compound contaning C, H and O on combustion gave 0.147 g of CO_(2) and 0.12 g of water . The percentage content of oxygen in the compound is :

0.45 g of an orgainc compound containing only C, H and N on combustion gave 1.1 g of CO_(2) and 0.3 g of H_(2) O . What is the percentage of C, H and N in the orgainc compound.

An organic compound contains C, H and O. 0.2475 g of the organic compound yielded on combustion 0.4950 g of CO_(2) and 0.2025 g of H_(2)O . Find the percentage composition of the organic compound.

The empirical formula of an organic compound is CH_(2)O . If its vapour density is 30 , the molecular formula of the compound is :

0.2056 g of an organic compound gave on combustion 0.114 g of H_(2)O and 0.880 g of CO_(2_ . Find the percentage of hydrogen and carbon in the organic compound.

How much oxygen is formed from 264 g of CO_(2) and 216 g of H_(2)O ?

0.12 g of an organic compound gave on combustion 0.18 g of water and 0.11 g of CO_(2) . Calculate the percentage of C and H in the organic compound.

Knowledge Check

  • 0.30 g of an organic compound containing C, H and oxygen on combustion yields 0.44 g CO_2 and 0.18 g H_2O . If one mol of compound weighs 60, then molecular formula of the compound is

    A
    `C_3H_8O`
    B
    `C_2H_4O_2`
    C
    `CH_2O`
    D
    `C_4H_6O`.

  • 0.30 g of an organic compound containing C, H and oxygen on combustion yields 0.44 g CO_2 and 0.18 g H_2O . If one mol of compound weighs 60, then molecular formula of the compound is

    A
    `C_3H_8O`
    B
    `C_2H_4O_2`
    C
    `CH_2O`
    D
    `C_4H_6O`.

  • 0.30g of an organic compound contaiining C, H and Oxygen an combustion yields 0.44g CO_2 and 0.18g H_2O . If one mol of compound weight 60, then molecular formula of the compound is

    A
    `C_2H_4O_2`
    B
    `C_4H_6O`
    C
    `C_3H_8O`
    D
    `CH_2O`
    • KCET PREVIOUS YEAR PAPERS-KARNATAKA CET 2015-CHEMISTRY
    1. 0.30g of an organic compound containing C, H and Oxygen on combustion...

      Text Solution

      |

    2. For one of the element various successive ionization ethalpies ( in...

      Text Solution

      |

    3. The aqueous solution of following salt will have the lowest pH :

      Text Solution

      |

    4. One of the following is an essential amino acid.

      Text Solution

      |

    5. The formation of cyanohydrin from a ketone is an example of

      Text Solution

      |

    6. 100 cm^3 of 1 M CH3COOH was mixed with 100 cm^3 of 2 M CH3OH to form a...

      Text Solution

      |

    7. How many coulombs of electricity are required for the oxidation of one...

      Text Solution

      |

    8. Cheilosis and digestive disorders are due to the deficiency of

      Text Solution

      |

    9. One of the following amide will not undergo Hoffmann bromamide reactio...

      Text Solution

      |

    10. Iodoform can be prepared from all, except

      Text Solution

      |

    11. The arrangement of following compounds : i. bromomethane ii.brom...

      Text Solution

      |

    12. The complex ion having minimum magnitude of Deltao(CFSE) is

      Text Solution

      |

    13. Which of the following colloids cannot be easily coagulated ?

      Text Solution

      |

    14. After adding non-volatile solute freezing point of water decreases to ...

      Text Solution

      |

    15. Which of the following compound of Xenon has pyramidal geometry ?

      Text Solution

      |

    16. Cryolite is

      Text Solution

      |

    17. Identify 'Q' in the following sequence of reactions :

      Text Solution

      |

    18. What ammount of dioxygen (in gram) contains 1.8 xx 10^23 molecules ?

      Text Solution

      |

    19. The pair of compound which cannot exist together in solution is

      Text Solution

      |

    20. Plot of Maxwell's distribution of velocities is given below : Whi...

      Text Solution

      |