Home
Class 12
CHEMISTRY
A wedding ring presented to a bride cont...

A wedding ring presented to a bride contains 788 mg of gold and the rest is diamond. If the ring weighs Ig the bride receives (At. mass Au = 197, C = 12)

A

more number of gold atoms

B

more number of carbon atoms

C

equal numbers of gold and carbon atoms

D

gold and carbon atoms in ratio of 4:1 approximately.

Text Solution

Verified by Experts

The correct Answer is:
B

The atomic mass of carbon is less and therefore no of moles will be more
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    DINESH PUBLICATION|Exercise Brain Teaser-2|40 Videos
  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    DINESH PUBLICATION|Exercise Unit Test - 1|20 Videos
  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    DINESH PUBLICATION|Exercise Ultimate Preparatory Package|20 Videos
  • CARBOXYLIC ACIDS

    DINESH PUBLICATION|Exercise BRAIN STORMING MULTIPLE CHOICE QUESTIONS (MCQS)|13 Videos
  • CHEMICAL KINETICS

    DINESH PUBLICATION|Exercise Additional Numerical Problems For Practice|16 Videos

Similar Questions

Explore conceptually related problems

Calculate the number of gold atoms in 300 mg of a gold ring of 20 carat gold (atomic mass of gold = 197, pure gold is 24 carat).

Number of moles of gold present in a piece of gold has a mass 12.6 g is (AU = 197)

The mass of precious stones is expressed in terms of ‘carat’. What is the mass of a ring in grams which contains 0.600 carat diamond and 8.500 g gold given that 1 carat = 3.168 grains and 1 g = 15.4 grains ?

Gold from Gold bearing rock can be dissolved with NaCN in presence of oxygen. Au(s)_NaCN(aq)+O_(2)(g)+H_(2)O(g)+H_(2)O(l)rarrNa[Au(CN)_(2)](aq)+NaOH(aq) For 200kg rock (containing 0.0197% gold) how many litres of 0.2M NaCN aqueous solution is required to dissolve all Gold present in rock. [Given: Atomic mass of Au=197]

How many of the following statements are correct regarding allotropes of carbon: (a) Graphite is not a good conductor of electicity in perpendicular direction of layers at ordinary temperatures. (b) Coke is the impure form of carbon. ( c) Anthracite is the purest form of carbon. (d) Buckminister fullerence contains 12 five membered rings and 20 six-membered rings. (e) Diamond is a good conductor of heat. (f) Graphite is diamagnetic in nature. (g) Graphite is thermodynamically more stable than diamond

Which of the following statements is INCORRECT? In fullerene (C60) total number of bonds( sigma and pi) is 90 Fullerene is purest form among allotropes of carbon Diamond is purest form among allotropes of carbon In fullerene (C60) "20" six membered rings and "12" five membered rings are present

DINESH PUBLICATION-CHEMICAL BONDING AND MOLECULAR STRUCTURE-Brain Teaser-1
  1. Born-Haber cycle is used to determine

    Text Solution

    |

  2. Which of the following gaseous molecules is polar ?

    Text Solution

    |

  3. The incorrect order of decreasing boiling point is

    Text Solution

    |

  4. Which of the following statements is not regarding bonding molecular o...

    Text Solution

    |

  5. In the formation of N2^+ from N2, the electron is removed from

    Text Solution

    |

  6. The magnitude of lattice energy of a solid increases if

    Text Solution

    |

  7. The electronegativities of F, Cl, Br, and I are 4.0, 3.0, 2.8, and 2.5...

    Text Solution

    |

  8. In which of the following pairs does the first compound not have a hig...

    Text Solution

    |

  9. Which of the following compounds has the least tendency to form hydro...

    Text Solution

    |

  10. In which of the following set of molecules is the order of boiling poi...

    Text Solution

    |

  11. Which of the following statement is correct?

    Text Solution

    |

  12. Which among the following molecules is diamagnetic ?

    Text Solution

    |

  13. The energy of sigma(2s), is greater than that of sigma(1s)^** orbital ...

    Text Solution

    |

  14. A wedding ring presented to a bride contains 788 mg of gold and the re...

    Text Solution

    |

  15. The bond that stabilizes the secondary structure of proteins is

    Text Solution

    |

  16. Which of the following does not contain a coordinate bond?

    Text Solution

    |

  17. Hybridisation of central atom in IC l2^+ is

    Text Solution

    |

  18. The transition of an electron from a 4s orbital to ls orbital in hydro...

    Text Solution

    |

  19. The chemical species having same number of electrons in the outermost...

    Text Solution

    |

  20. From among the following triatomic species the least angle around the ...

    Text Solution

    |