Advertisements
Advertisements
Question
Identify the type of overlap present in H2. Explain diagrammatically.
Advertisements
Solution
s–s σ overlap:
- The overlap between two half-filled s orbitals of two different atoms containing unpaired electrons with opposite spins is called s–s σ overlap.
e.g. Formation of H2 molecule by s–s σ overlap:
Hydrogen atom (Z = 1) has electronic configuration: 1s1.
The 1s1 orbitals of two hydrogen atoms overlap along the internuclear axis to form a σ bond between the atoms in the H2 molecule. - Diagram:
APPEARS IN
RELATED QUESTIONS
Explain the formation of H2 molecule on the basis of valence bond theory.
Draw diagram for bonding in ethene with sp2 Hybridisation.
Distinguish between sigma and pi bond.
Give a reason for carbon is tetravalent in nature.
Identify the type of overlap present in F2. Explain diagrammatically.
Identify the type of overlap present in H-F molecule. Explain diagrammatically.
Mention the steps involved in Hybridization.
When ones and three p orbitals hybridise,
What is a pi - bond?
Which bond is stronger σ or π? Why?
Considering x-axis as the molecular axis which out of the following will form a sigma bond.
1s and 2py
Considering x-axis as the molecular axis which out of the following will form a sigma bond.
2px and 2py
Considering x-axis as the molecular axis which out of the following will form a sigma bond.
2px and 2pz
Which of the following is correct decreasing order of the repulsive Interaction of electron pairs in a molecule?
The number of sigma bonds in vanillin is ____________.
The overlap of orbitals involved in the formation of C - Br bond in vinyl bromide is ______.
If the electronic configuration of an element is 1s2 2s2 2p6 3s2 3p6 3d2 4s2, the four electrons involved in chemical bond formation will be ______.
Briefly describe the valence bond theory of covalent bond formation by taking an example of hydrogen. How can you interpret energy changes taking place in the formation of dihydrogen?
Which of the following statements is INCORRECT according to the valence bond theory?
Match List-I with List-II.
| List-I | List-II | ||
| (A) | PCl5 | (i) | Square pyramidal |
| (B) | SF6 | (ii) | Trigonal planar |
| (C) | BrF5 | (iii) | Octahedral |
| (D) | BF3 | (iv) | Trigonal bipyramidal |
Choose the correct answer from the options given below.
The \[\ce{H - N - H}\] bond angle in ammonia molecule is ______.
