Home
Class 12
CHEMISTRY
A copper coin is completely covered with...

A copper coin is completely covered with a gold film and is placed in dilute `HNO_(3)`. This will result in formation of

A

Gold nitrate

B

Copper nitrate

C

None of these

D

Purple of cassius

Text Solution

Verified by Experts

The correct Answer is:
C

None of the above. Since, gold is a noble metal and common acids do not attack on it if used singly.
Promotional Banner

Topper's Solved these Questions

  • THE d-AND f- BLOCK ELEMENTS

    ERRORLESS|Exercise Past Years Questions |55 Videos
  • THE d-AND f- BLOCK ELEMENTS

    ERRORLESS|Exercise Assertion and Reason |11 Videos
  • THE d-AND f- BLOCK ELEMENTS

    ERRORLESS|Exercise Assertion and Reason |11 Videos
  • SURFACE CHEMISTRY

    ERRORLESS|Exercise ASSERTION AND REASON|14 Videos
  • THE P -BLOCK ELEMENTS (NITROGEN, OXYGEN, HALOGEN AND NOBLE FAMILY)

    ERRORLESS|Exercise ASSERTION & REASON|22 Videos

Similar Questions

Explore conceptually related problems

Tin dissolve in dilute HNO_(3) forming

What reaction will take place if a silver coin is put in dilute HNO_(3) ?

Toluene on oxidation with dilute HNO_(3) gives

Which compound does not dissolve in hot dilute HNO_(3) ?

Name the product when zinc is reacted with very dilute HNO_(3) acid.

Site of completion of meiosis ll resulting in formation of ootid is

ERRORLESS-THE d-AND f- BLOCK ELEMENTS -NCERT BASED QUESTIONS (Compounds of Transitional Elements)
  1. The co-ordination compound of which one of the following compositions ...

    Text Solution

    |

  2. AgCl dissolved in excess of NH(3), KCN and Na(2)S(2)O(3) solutions the...

    Text Solution

    |

  3. A copper coin is completely covered with a gold film and is placed in ...

    Text Solution

    |

  4. Name the reagent that is used in leaching of gold .

    Text Solution

    |

  5. A compound of Zinc which is white in cold state and yellow in hot stat...

    Text Solution

    |

  6. White vitriol is

    Text Solution

    |

  7. In the metallurgy of Zn the Zn dust obtained from roasting and reducti...

    Text Solution

    |

  8. Zinc when reacted with excess of NaOH gives

    Text Solution

    |

  9. Lucas reagent is ,

    Text Solution

    |

  10. Zinc reacts with hot and concetrated H(2)SO(4) to give

    Text Solution

    |

  11. Reduction of zinc with cold and very dilute nitric acid yields

    Text Solution

    |

  12. What happens when aluminium and zinc salts react with an excess of NaO...

    Text Solution

    |

  13. When calomel react with NH(4)OH solution the compound formed is

    Text Solution

    |

  14. The formula of corrosive sublimate is

    Text Solution

    |

  15. The main product obtained when a solution of sodium carbonate reacts w...

    Text Solution

    |

  16. The gas produced on heating MnO(2) with conc. HCl is -

    Text Solution

    |

  17. The number of moles of KMnO(4) required to oxidize one equivalent of K...

    Text Solution

    |

  18. The charge required for the reduction of 1 mole of Cr(2)O(7)^(2-) ions...

    Text Solution

    |

  19. In alkaline medium, the reaction of hydrogen peroxide with potassium p...

    Text Solution

    |

  20. The major product formed in the oxidation of acetylene with alkaline K...

    Text Solution

    |