Valence Bond Theory (VBT) & Hybridisation

s-s overlap is a _______

•  $\sigma\ Bond$

   

•  $\pi\ Bond$  

Tags

NGSS.HS-PS1-1

A π (pi) bond is the result of the

• overlap of two s orbitals

• overlap of an s orbital and a p orbital

• overlap of two p orbitals along their axes

• sidewise overlap of two parallel p orbitals

• sidewise overlap of two s orbitals

Sigma bonds are formed by

• side to side overlap of s orbitals

• end to end overlap of s orbitals

• side to side overlap of p orbitals

• end to end overlap of p orbitals

Greater the overlap of the orbitals, _________________________

• lesser the bond strength

• greater the bond strength

• bond strength remains the same

• no bond formation

How many sigma and pi bonds does this have? 

• 3 sigma and 2 pi
• 5 sigma and 5 pi
• 5 sigma and 0 pi
• 0 sigma and 5 pi

What is the hybridization of a linear molecule?

• sp

• sp²

• sp³

• sp³d

What is the hybridization of this molecule shown above

• sp

• sp²

• sp³

• sp⁴

Two carbon atoms form a linear shaped ethene, C₂H₄, molecule when bonded with four other hydrogen atoms. Prior to bonding, the carbon atom

• does not hybridise

• undergoes sp hybridisation

• undergoes sp² hybridisation

• undergoes sp³ hybridisation

Carbon atom undergo

• sp hybridization
• sp² hybridization
• sp³ hybridization
• dsp³ hybridization

What is the hybridization of the carbon atom indicated by the arrow?

• sp hybridization

• sp² hybridization

• sp³ hybridization

• sp³d hybridization