Home
Class 10
CHEMISTRY
When two compounds R and S have same per...

When two compounds R and S have same percentage composition. Then the compounds R and S are :

A

identical

B

isomer

C

either identical or isomer

D

all are correct

Text Solution

Verified by Experts

The correct Answer is:
D

Converse of law of definite proportion is not true. For example, butane and isobutane have same percentage composition, acetylene and benzene have same percentage composition.
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

Q. The colour of the compound R is:

Homologous compound have same:

The hybridization of central atoms of compounds A, B, C and D are sp^(3)d, sp^(3), sp^(2) and sp respectively. If compounds A and D have same shape like I_(3)^(-) and compounds B and C have same shape like water structure. Then calculate value of "P+Q+R+S", where P, Q, R, and S are number of lone pairs on central atoms of compounds A, B, C and D respectively.

The hybridization of central atoms of compounds A, B, C and D are sp^(3)d, sp^(3), sp^(2) and sp respectively. If compounds A and D have same shape like I_(3)^(-) and compounds B and C have same shape like water structure. Then calculate value of "P+Q+R+S", where P, Q, R, and S are number of lone pairs on central atoms of compounds A, B, C and D respectively.

Consider the following compounds If 'p' is the number of compounds having more enol content than III, 'q' is the number of compounds having enolic form more stable than that of IV and 'r' is the number of compounds having percentage of enolic form more than the corresponding keto form, find p+q+r . Fill your answer as sum of digits (excluding decimal places) till you get the single digit answer.

A crystalline compound when heated became anhydrous by losing 51.2 % of the mass. On analysis, the anhydrous compound gave the following percentage composition: Mg = 20.0 %, S = 26.66 % and O = 53.33 %, Calculate the molecular formula of the anhydrous compound and crystalline compound. The molecular mass of anhydrous compound is 120 u.

Which of the following series of compounds have same mass percentage of carbon ?

The R/S configuration of following compounds are:

Compound(s) is/are:

ICSE-SAMPLE PAPER 2-MULTIPLE CHOICE QUESTION
  1. Which of the following is true for alkali metals ?

    Text Solution

    |

  2. Which of the following can be extracted by reducing agents like Carbon...

    Text Solution

    |

  3. Salts of which elements are generally coloured :

    Text Solution

    |

  4. If two compounds have the same empirical formula but different molecul...

    Text Solution

    |

  5. Which one of the following salt solutions on reaction with excess of a...

    Text Solution

    |

  6. When two compounds R and S have same percentage composition. Then the ...

    Text Solution

    |

  7. Halogen are :

    Text Solution

    |

  8. An element having atomic number 17 and belongs to halogens is

    Text Solution

    |

  9. How many electrons are required by oxygen atom to attain nearest noble...

    Text Solution

    |

  10. Which of the following is used in the manufactures of bleaching powder...

    Text Solution

    |

  11. If electrons are added to an atom, it is:

    Text Solution

    |

  12. Two solutions 'A', 'B' and 'C' having pH 2, 9 and 11. Which solution w...

    Text Solution

    |

  13. Sodium chloride solution conducts electricity due to the presence of

    Text Solution

    |

  14. A compound consists of non-polar molecules only, which of the followin...

    Text Solution

    |

  15. The element with lowest ionization energy among the following is :

    Text Solution

    |

  16. Due to the presence of strong electrostatic forces of attraction betwe...

    Text Solution

    |

  17. Analyse the given information and answer the following questions. A=...

    Text Solution

    |

  18. Analyse the given information and answer the following questions. A=...

    Text Solution

    |

  19. Analyse the given information and answer the following questions. A=...

    Text Solution

    |

  20. Analyse the given information and answer the following questions. A=...

    Text Solution

    |