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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

MO

B

`M_(2)O`

C

`M_(2)O_(3)`

D

`MO_(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
The metal M has valency 1 and its oxide will be `M_(2)O`.
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DINESH PUBLICATION-S-BLOCK ELEMENTS (ALKALI AND ALKALINE EARTH METALS )-MCQB
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  2. Which has the maximum electropositive character ?

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  5. which has the maximum m.p ?

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  6. Which electronic configuration corresponds to least ionisation energy?

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  7. Which is formed with lithium is heated in air?

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  15. The most electropositive amongst the alkaline earth metals is:

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