Home
Class 12
CHEMISTRY
The percentage composition of a compound...

The percentage composition of a compound `C=90%` and `H=10%`. A possible formula of the compounds is

A

`C_(8)H_(10)`

B

`C_(15)H_(30)`

C

`C_(15)H_(20)`

D

`C_(15)H_(15)`

Text Solution

Verified by Experts

The correct Answer is:
C

`C:H=90/12:10/1=3:4`
Therefore empirical formula `=C_(3)H_(4)`. Since M.F. in `n` times E.F., therefore the M.F. of the hydrocarbon `=C_(15)H_(20)`
Promotional Banner

Topper's Solved these Questions

  • PRACTICAL ORGANIC CHEMISTRY

    NARAYNA|Exercise COMPREHENSION_TYPE|18 Videos
  • PRACTICAL ORGANIC CHEMISTRY

    NARAYNA|Exercise SUBJECTIVE_TYPE|1 Videos
  • PRACTICAL ORGANIC CHEMISTRY

    NARAYNA|Exercise MCQ_TYPE|30 Videos
  • POLYMERS

    NARAYNA|Exercise EXERCISE -4|8 Videos
  • QUALITATIVE ANALYSIS

    NARAYNA|Exercise Subjective Type Question|33 Videos

Similar Questions

Explore conceptually related problems

A compound contains C=90% and H=10% Empirical formula of the compound is:

The percentage composition of elements in a compound is calculated from the molecular formula of the compound. The molecular mass of a compound is calculated from the atomic masses of the various elements present in the compound. The percentage of mass of each element is then calculated with the help of the following relation. Percentage mass of the element in the compound. ("Mass of the element")/("Mass of the compound") Percentage of S in aluminium sulphate is

The molecular mass of an organic compound is 78 and its percentage composition is 92.4% C and 7.6% H. Determine the molecular formula of the compound.

The thermal decomposition of a compound is of first order. If 50% of a sample of the compound is decomposed in 120 minutes, how long it take for 90% of the compounds to decompose.

NARAYNA-PRACTICAL ORGANIC CHEMISTRY-SCQ_TYPE
  1. When 0.32g of a compound is heated with conc. HNO(3) and BaCl(2), 0.93...

    Text Solution

    |

  2. The oxygen is estimated in the organic compound by

    Text Solution

    |

  3. The percentage composition of a compound C=90% and H=10%. A possible f...

    Text Solution

    |

  4. The empirical formula of a compound is CH(2)O and its molecular mass i...

    Text Solution

    |

  5. The best method for the separation of naphthalene and benzoic acid fro...

    Text Solution

    |

  6. A mixture of n-Butylamine and Petrol can be separated by using

    Text Solution

    |

  7. Which of the following compounds does not show Lassaigne's test for ni...

    Text Solution

    |

  8. In lassaigne's test a blue colour is obtained if the organic compound ...

    Text Solution

    |

  9. Which of the following organic compound will give red colour in Lassai...

    Text Solution

    |

  10. In the test of sulphur violet colour of sodium thionitroprusside is fo...

    Text Solution

    |

  11. The % of sulphur in an organic compound whose 0.32 gm. Produde 0.23 gm...

    Text Solution

    |

  12. Sodium extract is heated with con. HNO(3) before testing for halogens ...

    Text Solution

    |

  13. To determinent the weight of a halogen in orangic compound, the compou...

    Text Solution

    |

  14. Detection of the chlorine is possible without preparing sodium extract...

    Text Solution

    |

  15. During the testing for phosphorus in organic compounds, a yellow solut...

    Text Solution

    |

  16. In Lassaigne’s test, the organic compound is fused with a piece of sod...

    Text Solution

    |

  17. In the Lassaigne's test for the detection of nitrogen in an organic co...

    Text Solution

    |

  18. In the Lassaigne’s test, the blood red colouration is due to the forma...

    Text Solution

    |

  19. In Lassaigne's test for nitrogen the blue colour is due to the formati...

    Text Solution

    |

  20. In Kjeldahl's method, nitrogen present is estimated as :

    Text Solution

    |