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प्रश्न
Define Bond Length
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उत्तर
Bond length is defined as the equilibrium distance between the nuclei of two covalently bonded atoms in a molecule.
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संबंधित प्रश्न
Select and write the most appropriate alternatives from the given choices.
The angle between the two covalent bonds is minimum in:
Which type of hybridization is present in the ammonia molecule?
In the case of bond formation in Acetylene molecule: State number of sigma and pi bonds formed.
Define Bond Enthalpy
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:
HCN
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 |
- What happens to the bond length when unsaturation increases?
- Which is the most stable compound?
- Indicate the relationship between bond strength and Bond enthalpy.
- Comment on the overall relation between Bond length, Bond Enthalpy, and Bond strength and stability.
Complete the flow chart.
| Molecular Formula | Structural Formula | Shape/ Geometry | Bond angle |
| BeCl2 | 180° | ||
| O=C=O | Linear | ||
| C2H2 |
Write the formula to calculate the bond order of molecule.
The CORRECT order of C-X bond polarity is ____________.
In gas phase H-O-O-H bond angle in H2O2 is ______.
What is the value of C-O-H bond angle in CH3_OH?
Which of following bonds has maximum bond length?
What is the H-S-H bond angle in H2S?
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:
Which of the following pairs have identical bond order?
Identify the CORRECT option.
Which of the following is INCORRECTLY matched?
What is the bond order of B2 molecule?
Why is bond order of Be2 molecule zero?
(Nb = bonding electrons, Na = antibonding electrons)
Consider the ions/molecule:
\[\ce{O^+_2, O_2, O^-_2, O^{2-}_2}\]
For increasing bond order the correct option is:
What is the bona order of O2 molecules?
