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The electronic configuration of metal M ...

The electronic configuration of metal M is `1s^(2)2s^(2)2p^(6)3s^(1).` The formula of its oxide will be :

A

M O

B

`M_(2)O`

C

`M_(2)O_(3)`

D

`MO_(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
Electronic configuration indicates that the metal is univalent (alkali metal). Its oxide will be `M_(2)O`
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Knowledge Check

  • The electronic configuration of metl M is 1s^(2)2s^(2)2p^(6)3s^(1) . The formula of its oxide will

    A
    `MO`
    B
    `M_(2)O`
    C
    `SO_(3)`
    D
    all of these

  • The electronci configuration of metal M is 1s^(2), 2s^(2)p^(6), 3s^(1). The formula of its oxide would be

    A
    MO
    B
    `M_(2)O`
    C
    `M_(2)O_(3)`
    D
    `MO_(2)`

  • The element with electronic configuration 1s^(2)2s^(2)2p^(6)3s^(2) is

    A
    member of alkali family
    B
    a noble gas
    C
    an alkaline earth metal
    D
    unpredictable.
    • MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-S-BLOCK ELEMENTS-Exercise 2
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    2. Nitrogen dioxide cannot be prepared by heating :

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    3. The reducing power of a metal depends on various factors. Suggest the ...

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    4. When NaOH is made, the gas released at the cathode is

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    5. Identify the correct statement.

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    6. On dissolving moderate amount of sodium metal in liquid ammonia at low...

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    7. A combustible gas is liberated when caustic soda solution is heated wi...

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    8. A mixture contains two moles of Na(3)CO(3) and 1 mole of Li(2)CO(3). W...

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    9. Element A burns in nitrogen to give an ionic compound B. Compound B re...

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    10. Sodium is heating in air at 350^(@)C to form A. compound A when reacts...

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    11. A colourless salt X has 50% Na(2)SO(3) and 50% H(2)O . How much of SO(...

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    12. A sodium salt on treatment with MgCl(2) gives white precipitate only o...

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    13. A more economical process but based on same principle was given by

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    14. Reaction given in passage is spontaneous because

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    15. NaOH can also be prepared by electrolysis of equeous NaCl. Amount of N...

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    16. Which of the following compound is used in gun powder ?

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    17. Solubility of alkaline earth metal sulphates decreases down the group ...

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    18. A substance which gives a brick red flame and breaks down on heating t...

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    19. A metal M readily forms its sulphate MSO(4) which is water soluble. It...

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    20. Beryllium and aluminimum exhibit many properties which are similar . B...

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