Home
Class 10
CHEMISTRY
(a). Write down the electron arrangement...

(a). Write down the electron arrangement in (i) a magnesium atom, and (ii) a chlorine atom.
(b). How many electrons are there in the valence shell of (i) a magnesium atom, and (ii) a chlorine atom?
(c). Show the formation of magnesium chloride from magnesium and chlorine by the transfer of electrons.
(d) State whether magnesium chloride will conduct electricity or not. give reason for your answer.
(e). Why are covalent compounds generally poor conductors of electricity?

Text Solution

Verified by Experts

Mg - 12 2, 8, 2
Cl - 17 2, 8, 7

The 2 electrons lost by a magnesium atom are gained by chlorine atoms to produce a magnesium ion and 2 chloride ions.
`MgCl_(2)`
Solution of magnesium chloride conducts electricity because an ionic compound dissociates into ions when dissolved in water and hence conduct electricity.
For example : zinc sulphide should be roasted to obtain zinc oxide.
`2ZnS + 3O_(2) rarr2ZnO + 2SO_(2)`
After any of the above steps, zinc should be reduced to obtain zinc.
`ZnO + C rarr Zn + CO`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • METALS AND NON-METALS

    OSWAL PUBLICATION|Exercise Board corner (short answer type questions - II)|11 Videos

  • METALS AND NON-METALS

    OSWAL PUBLICATION|Exercise Board corner(Long answer type questions)|20 Videos

  • METALS AND NON-METALS

    OSWAL PUBLICATION|Exercise Board corner (very short answer type questions)|1 Videos

  • METALS AND NON - METALS

    OSWAL PUBLICATION|Exercise CASE - BASED MCQs|29 Videos

  • NEW CHAPTERS AND QUESTIONS BASED ON LATEST TYPOLOGIES INTRODUCED BY CBSE FOR 2021-22 EXAMINATION

    OSWAL PUBLICATION|Exercise PERIODIC CLASSIFICATION OF ELEMENTS (VISUAL CASE - BASED QUESTIONS)|15 Videos

Similar Questions

Explore conceptually related problems

Write the formation of magnesium chloride.

How many electrons are there in the L-shell of chlorine atom?

Knowledge Check

  • The main source of magnesium chloride is

    A
    Carnallite
    B
    Magnetite
    C
    Limonite
    D
    Siderite

  • In the extraction of magnesium from magnesium chloride, sodium chloride helps

    A
    lower the conductivity of `MgCl_(2)`
    B
    rise the conductivity of `MgCl_(2)`
    C
    lower the melting point of `MgCl_(2)`
    D
    `Change the solid state structure of `MgCl_(2)`

    • Similar Questions

    Explore conceptually related problems

    Work out the formula for magnesium chloride.

    (a). Write down the electronic configuration of (i) Sodium atom, and (ii) Chlorine atom. (b). How many electrons are there in te outermost shell of (i) a sodium atom, and (ii) a chlorine atom? (c). Show the formation of NaCl from sodiuum and chlorine atoms by the transfer of electron(s). (d). Why has sodium chloride a high melting point? (e) Name the anode and the cathode used in the electrolytic refining of impure copper metal.

    (a). Write the electron arrangement in (i) a magnesium atom, and (ii) an oxygen atom. (b). How many electrons are there ini the valence shell of (i) a magnesium atom, and (ii) an oxygen atom? (c) Show on a diagram the transfer of electrons between the atoms in the formation of MgO. (d) Name the solvent in which ionic compounds are generally soluble. (e). Why are aqueous solutions of ionic compounds able to conduct electricity?

    How is anhydrous magnesium chloride prepared from magnesium chloride hexahydrate?

    (a) Show the formation of magnesium chloride and sodium chloride by transfer of electrons. (b) Identify the ions present in these compounds. (c) Why do ionic compounds not conduct electricity in the solid state?

    Write down the electron distribution of chlorine atom. How many electrons are there in the L-shell ? Atomic number of chlorine is = 17.

    Home
    Profile