Home
Class 12
CHEMISTRY
Copper is prepared as alloying element i...

Copper is prepared as alloying element in ornamental gold. Why? 

Text Solution

Verified by Experts

Copper is present in the same group where gold is placed. One of the requirements of alloy prepartion is similar valency of alloying elements:
Promotional Banner

Topper's Solved these Questions

  • D - BLOCK ELEMENTS

    AAKASH SERIES|Exercise SUBJECTIVE EXERCISE - 1(SHORT ANSWER QUESTIONS)|4 Videos

  • D - BLOCK ELEMENTS

    AAKASH SERIES|Exercise SUBJECTIVE EXERCISE - 1 (VERY SHORT ANSWER QUESTIONS)|4 Videos

  • D & F BLOCK ELEMENTS

    AAKASH SERIES|Exercise PRACTICE SHEET-5 (INTEGER ANSWER TYPE QUESTIONS)|6 Videos

  • D-BLOCK ELEMENTS

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE-4 (ASSERTION (A) & REASON (R) TYPE QUESTIONS )|69 Videos

Similar Questions

Explore conceptually related problems

Which element is called white gold ?

Bearings are prepared using the alloy

Why carbon is versatile element in nature?

Is 'Na' an element or compond? Why

Is O_2 an element or compound? Why

A goldsmith mixes gold and copper in the ratio 7:2 to prepare an ornament. If the ornament weighs 45gms, find the weight of gold and copper in it.

The alloy used as heating element in electrical appliance is

A Gold smith mixes gold and copper in the ratio of 5:2 to prepare an ornament. If the ornament weights 105 gms. Find the weight of gold and copper in it.

Why copper pyrites roasted partially during the extraction of copper?

AAKASH SERIES-D - BLOCK ELEMENTS-PRACTICE EXERCISE
  1. Copper is prepared as alloying element in ornamental gold. Why?

    Text Solution

    |

  2. Which of the following element has high density

    Text Solution

    |

  3. Element with pseudooctet configuration in its outermost shell

    Text Solution

    |

  4. The atomic number of element having pseudo inert gas configuration in ...

    Text Solution

    |

  5. Which of the following ion has three unpaired d-electrons

    Text Solution

    |

  6. Number of electrons present in the outer most shell of Cut ion

    Text Solution

    |

  7. Highest oxidation state exhibited by a 3d-metal is

    Text Solution

    |

  8. The highest oxidation state is exhibited by the transition metal with ...

    Text Solution

    |

  9. Hydrated Cu^(2+) ions absorb light of ..... colour and transmit light ...

    Text Solution

    |

  10. The colour of [Ti(H(2)O)(6)]^(3+) is due to

    Text Solution

    |

  11. Complementary colour of green light of wavelength 5000 A^(@) is

    Text Solution

    |

  12. A transitional metal X^(+2) in its hydrated state has six 3d electrons...

    Text Solution

    |

  13. Magnetic moment of which of the following is zero

    Text Solution

    |

  14. The magnetic moment of an ion in its +3 oxidation state is 3.85 BM. Th...

    Text Solution

    |

  15. Common oxidation states of copper in its compounds are

    Text Solution

    |

  16. The ion with highest magnetic moment is

    Text Solution

    |

  17. The highest degree of paramagnetism is shown by

    Text Solution

    |

  18. M^(x+) ion has magnetic moment 2.84 BM. Then 'x' is (Z of M = 23)

    Text Solution

    |

  19. Magnetic moment of Mn^(+2) is 5.8 B.M. Hence the number of unpaired el...

    Text Solution

    |

  20. Reagent used to reduce NO(3)^(-) to NH(3)

    Text Solution

    |

  21. The common metal present in German Silver, Bell metal and Brass is

    Text Solution

    |