Home
Class 9
CHEMISTRY
(a) What is an ion ? How is an ion forme...

(a) What is an ion ? How is an ion formed ? Explain with the help of two examples of different ions.
(b) The valencies (or charges) of some of the ions of are given below :

Using this information, write down the formulae of the following compunds :
(i) Sodium phosphate , (ii) Ammonium sulphate
(iii) Calcium hydroxide , (iv) Lead bromide

Text Solution

Verified by Experts

The correct Answer is:
(b) (i) `Na_(3)PO_(4)` , (ii) `(NH_(4))_(2)SO_(4)` , (iii) `Ca(OH)_(2)` , (iv) ` PbBr_(2)`
Promotional Banner

Topper's Solved these Questions

  • ATOMS AND MOLECULES

    LAKHMIR SINGH & MANJIT KAUR|Exercise Exercise|205 Videos

  • IS MATTER AROUND US PURE

    LAKHMIR SINGH & MANJIT KAUR|Exercise NCERT BOOK PAGE 24|1 Videos

Similar Questions

Explore conceptually related problems

(a) What is the difference between a cation and an anion? Explain with examples. (b) The valencies (or charges) of some of he ions are given below : Using this information, write down the formula of : (i) Sodium sulphide (ii) Copper nitrate

The symbols of some of the ions are given below : K^(+) , Al^(3+) , Br^(-) , O^(2-) Using this information, write down the formulae of : (i) Aluminium bromide (ii) Potassium oxide

Ammonium ion is

Write down the formulae of (i) sodium oxide (ii) aluminium chloride (iii) sodium sulphide (iv) magnesium hydroxide

The valency o a phosphate ion is

Write the formulae of the following complex (i) Pentamminechlorocobalt (III) ion (ii) Lithium tetrahydridoaluminate (III)

Write down the formulae of (i) aluminium hydroxide, (ii) hydrogen sulphide (iii) ammonium sulphate, (iv) sodium carbonate (v) calcium phosphate, (vi) potassium chromate.

LAKHMIR SINGH & MANJIT KAUR-ATOMS AND MOLECULES-Exercise
  1. Give the formulae of the compounds formed from the following sets of e...

    Text Solution

    |

  2. What are ionic and molecular compounds? Give exmples.

    Text Solution

    |

  3. (a) What is an ion ? How is an ion formed ? Explain with the help of t...

    Text Solution

    |

  4. (a) What is the difference between a cation and an anion? Explain ...

    Text Solution

    |

  5. Explain the formation of (i) sodium ion, and (ii) chloride ion, from ...

    Text Solution

    |

  6. (a) Write the symbols/formulae of two simple ions and two compound io...

    Text Solution

    |

  7. (a) Define 'formula unit' of an ionic compound. What is the formul...

    Text Solution

    |

  8. The atomic number of an element X is 13. What will be the number of el...

    Text Solution

    |

  9. Which of the following represents a correct chemical formula ?

    Text Solution

    |

  10. If the number of electrons in an ion Z^(3-) is 10, the atomic number...

    Text Solution

    |

  11. The anion of an element has :

    Text Solution

    |

  12. A particle X has 17 protons, 18 neutrons and 18 electrons. This part...

    Text Solution

    |

  13. An element which can exhibit valencies of 2, 4 and 6 can be :

    Text Solution

    |

  14. The atomic number of an element E is 16. The number of electrons in i...

    Text Solution

    |

  15. The cation of an element has :

    Text Solution

    |

  16. Two elements X and Y have valencies of 5 and 3, and 3 and 2, respecti...

    Text Solution

    |

  17. The number of electrons in an ion Y^(2+) is 10. The atomic number of e...

    Text Solution

    |

  18. A particle P has 18 electrons, 20 neutrons and 19 protons. This parti...

    Text Solution

    |

  19. An ionic compound will be formed by the combination of one of the foll...

    Text Solution

    |

  20. Molecular compounds are usually formed by the combination between :

    Text Solution

    |