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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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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-S-BLOCK ELEMENTS-Exercise 2
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  5. Identify the correct statement.

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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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