Home
Class 12
CHEMISTRY
Percentage of gold in 18 carat gold is:...

Percentage of gold in 18 carat gold is:

A

`38.67% `

B

`75 % `

C

`80%`

D

`20% `

Text Solution

Verified by Experts

The correct Answer is:
B
Hint: `75%`
Promotional Banner

Topper's Solved these Questions

  • D & F BLOCK ELEMENTS

    ACCURATE PUBLICATION|Exercise 1 OR 2 MARK QUESTIONS|40 Videos

  • D & F BLOCK ELEMENTS

    ACCURATE PUBLICATION|Exercise 2 OR 5 MARKS QUESTIONS|61 Videos

  • COORDINATION COMPOUNDS

    ACCURATE PUBLICATION|Exercise 2 MARKS QUESTIONS|23 Videos

  • ELECTRO CHEMISTRY

    ACCURATE PUBLICATION|Exercise Numbericals Practice|44 Videos

Similar Questions

Explore conceptually related problems

Pure gold is 100 carat gold.

How will you convert 24 carat gold into 22 carat gold for making ornaments?

The amount of electricity which release 2.0g of gold from a gold salt is same as that which dissolves 0.967g of copper anode during the electrolysis of copper sulphate solution. What is the oxidation number of gold in the gold ion ? (At mass of Cu=63.5,Au=197)

Most jewellery is made of 22 carat gold. What is the percentage of gold in it?

What is 24 carat gold? How would you convert into 18 carat gold?

Pure gold is ………………..carat.

Which of the following are pure substances and which are mixtures ? Air, Milk,Graphite,Gasoline,Distilled water,Ice,Iodised table salt,Oxygen,One rupee coin, 22 carat gold,24 carat gold,Steel,Iron,Solid iodine.

the protective power of the lyophilic colloids is expressed in terms of gold number, a term introduced by Zsigmondy. Gold number is the number of milli - gram of the protective colloid which prevent the coagulation of 10 mLof red gold sol , when 1 mL of a 10 per cent solution of sodium chloride is added to it . thus smaller the gold number of lyophillic colloid, the greater is the protective power. On addition of one mL of sloution of 10 % NaCl to 10 mL. of red gold sol in presence of 0.025 g of starch the coagultion is just prevented . the gold number of starch is : 0.025, 0.25, 2.5, 25.

Relative density of gold is 19.3. The density of water is 1000 kg m^-3 . What is the density of gold in SI units.

ACCURATE PUBLICATION-D & F BLOCK ELEMENTS -2 OR 5 MARKS QUESTIONS
  1. Percentage of gold in 18 carat gold is:

    Text Solution

    |

  2. What are transition elements ? Which of the d block elements are not r...

    Text Solution

    |

  3. What are the characteristics of the transition elements ?

    Text Solution

    |

  4. In what way is the electronic configuration of transition elements dif...

    Text Solution

    |

  5. Why is Copper considered as transition metal ?

    Text Solution

    |

  6. Scandium (z = 21) is a transition element but zinc (z = 30) is not. Ex...

    Text Solution

    |

  7. Sliver atom has completely filled d-orbitals (4d^10) in its ground sta...

    Text Solution

    |

  8. [Ti (H2O)6]^(3+) is coloured while [Sc(H2O)6]^(3+) is colourless. Expl...

    Text Solution

    |

  9. Explain why TiCl3 is coloured but TiCl4 is colourless ?

    Text Solution

    |

  10. Explain why [Ti (H2O)6]^(3+) is violet while [Ti (H2O)6]^(4+) is colou...

    Text Solution

    |

  11. Why Cd^(2+) salts are white ? Cd=48

    Text Solution

    |

  12. Which of the two is paramagnetic V(IV) or V(V) and why ?

    Text Solution

    |

  13. Why does Mn(II) shows maximum paramagnetic character among the dival...

    Text Solution

    |

  14. Name the elements represented by following symbols : Hg , Pb , Au , Ag...

    Text Solution

    |

  15. What is atomicity ? Explain with two examples.

    Text Solution

    |

  16. What is the atomicity of the following : oxygen

    Text Solution

    |

  17. Explain why Cu(I) is diamagnetic while Cu(II) is paramagnetic in natur...

    Text Solution

    |

  18. Transition metals have high melting points and boiling points. Why?

    Text Solution

    |

  19. What is the atomicity of the following : ozone

    Text Solution

    |

  20. What is the atomicity of the following : neon

    Text Solution

    |

  21. What is the atomicity of the following : phosphorous

    Text Solution

    |