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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान इयत्ता ११

Write Lewis symbols for the following atoms and ions: S and S2–.

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प्रश्न

Write Lewis symbols for the following atoms and ions: S and S2–.

टीपा लिहा
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उत्तर १

S and S2–

The number of valence electrons in sulphur is 6.

The Lewis dot symbol of sulphur (S) is 

The dinegative charge infers that there will be two electrons more in addition to the six valence electrons. Hence, the Lewis dot symbol of S2– is 

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उत्तर २

`""_16"S"` = 2,8,6 ∴ Lewis symbol = , `"S"^(2-) "ions" = `

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 4: Chemical Bonding and Molecular Structure - EXERCISES [पृष्ठ १३३]

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एनसीईआरटी Chemistry Part 1 and 2 [English] Class 11
पाठ 4 Chemical Bonding and Molecular Structure
EXERCISES | Q 4.3 - (a) | पृष्ठ १३३

संबंधित प्रश्‍न

Explain the Formation of a Chemical Bond.


Write Lewis symbols for the following atoms and ions H and H–.


Use Lewis symbols to show electron transfer between the following atoms to form cations and anions:-

K and S


Draw Lewis dot diagram for the following.

Hydrogen (H2)


Draw Lewis dot diagram for the following.

Carbon dioxide (CO2)


Draw Lewis electron dot structure of HF


Draw Lewis electron dot structure of C2H4


Explain in brief with one example of a covalent bond


Explain in brief with one example of coordinate bond


Answer in one sentence:

Covalent bond is directional in nature. Justify.


Which of the following molecules has a central atom with complete octet?


____________ is an example of molecule with expanded octet.


In which of the following, the central atom does NOT have lone pair(s) of electrons?


The condensed electronic configuration [Ne] 3s2 3p5 denotes the element ____________.


Which of the following molecule does not obey octet rule?


Match the items given in Column I with examples given in Column II.

Column I Column II
(i) Hydrogen bond (a) \[\ce{C}\]
(ii) Resonance (b) \[\ce{LiF}\]
(iii) Ionic solid (c) \[\ce{H2}\]
(iv) Covalent solid (d) \[\ce{HF}\]
  (e) \[\ce{O3}\]

Assertion (A): Sodium chloride formed by the action of chlorine gas on sodium metal is a stable compound.

Reason (R): This is because sodium and chloride ions acquire octet in sodium chloride formation.


What is the formal charge present on the oxygen atom (numbered 1) in the Lewis structure of CO2?

\[\ce{^\bullet_\bullet {\ce{O}} ≡ C - \overset{\bullet\bullet}{\underset{\bullet\bullet}{O^\bullet_\bullet}}}\]


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