Advertisements
Advertisements
Question
In the case of bond formation in Acetylene molecule: State number of sigma and pi bonds formed.
Advertisements
Solution
In the acetylene molecule, there are three sigma bonds and two pi bonds.
APPEARS IN
RELATED QUESTIONS
Select and write the most appropriate alternatives from the given choices.
The angle between the two covalent bonds is minimum in:
In Ammonia molecule the bond angle is 107° and in water molecule it is 104°35', although in both the central atoms are sp3 hybridized Explain.
Give a reason for HF is a polar molecule
Which type of hybridization is present in the ammonia molecule?
F-Be-F is a liner molecule but H-O-H is angular. Explain.
In the case of bond formation in Acetylene molecule: How many covalent bonds are formed?
In the case of bond formation in Acetylene molecule: Name the type of Hybridization.
Define Bond Length
Predict the shape and bond angles in the following molecule:
HCN
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 |
- 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.
Energy required to dissociate 6 g of gaseous hydrogen into free gaseous atoms is 208 kcal at 25°C. Bond energy of H-H bond will be ____________.
The CORRECT order of C-X bond polarity is ____________.
In gas phase H-O-O-H bond angle in H2O2 is ______.
Which of following bonds has maximum bond length?
The hybridization and bond angle in BeCl2 molecule are ____________ respectively.
Which of the following pairs have identical bond order?
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?
