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Write the formula to calculate the bond order of molecule. - Chemistry

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प्रश्न

Write the formula to calculate the bond order of molecule.

एक पंक्ति में उत्तर

उत्तर

Bond order of a molecule = `("N"_"b"-"N"_"a")/2`

where Nb is the number of electrons present in bonding MOs and Na is the number of electrons present in antibonding MOs.

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Parameters of Covalent Bond
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अध्याय 5: Chemical Bonding - Exercises [पृष्ठ ८०]

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बालभारती Chemistry [English] 11 Standard
अध्याय 5 Chemical Bonding
Exercises | Q 7. (H) | पृष्ठ ८०

संबंधित प्रश्न

Give a reason for HF is a polar molecule


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In the case of bond formation in Acetylene molecule: State number of sigma and pi bonds formed.


Define Bond Enthalpy


Define Bond Length


Predict the shape and bond angles in the following molecule:

CF4


Predict the shape and bond angles in the following molecule:

NF3


Predict the shape and bond angles in the following molecule:

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Predict the shape and bond angles in the following molecule:

H2S


Using data from the Table, answer the following:

Examples C2H6 Ethane C2H4 Ethene C2H2 Ethyne
Structure

\[\begin{array}{cc} \backslash \phantom{......}/\phantom{.}\\ \ce{—C – C —}\\  /\phantom{......}\backslash\phantom{.}\end{array}\]

\[\begin{array}{cc} \backslash \phantom{......}/\\ \ce{C \text{=} C}\\  /\phantom{......}\backslash\end{array}\]

\[\ce{- C ≡ C -}\]
Type of bond between carbons single double triple
Bond length (nm) 0.154 0.134 0.120
Bond Enthalpy kJ mol-1 348 612 837
  1. What happens to the bond length when unsaturation increases?
  2. Which is the most stable compound?
  3. Indicate the relationship between bond strength and Bond enthalpy.
  4. Comment on the overall relation between Bond length, Bond Enthalpy, and Bond strength and stability.

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Which of following bonds has maximum bond length?


Consider the reactions.

\[\ce{C_{(s)} + 2H2_{(g)} -> CH4_{(g)}}\], ΔH = −x kcal

\[\ce{C_{(g)} + 4H_{(g)} -> CH4_{(g)}}\], ΔH = −x1 kcal

\[\ce{CH4_{(g)} -> CH3_{(g)} + H_{(g)}}\], ΔH = +y kcal

The average C-H bond enthalpy is:


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Identify the CORRECT option.


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Why is bond order of Be2 molecule zero?

(Nb = bonding electrons, Na = antibonding electrons)


What is the bond order of Be2 molecule?


What is the bona order of O2 molecules?


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