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Chemical Bonding And Molecular Structure

Question

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Give the points of difference between sigma and pi molecular orbitals ?

Solution

σ-Molecular orbital	$straight pi$ -Molecular orbital
1. It is formed by the overlap of atomic orbitals along the internuclear axis.	1. It is formed by the sidewise (lateral) overlapping of the atomic orbitals.
2. Due to head on the overlap, the overlapping is maximum	2. Due to sidewise overlap, overlapping is minimum.
3. It consists of one electron cloud.	3. It consists of two electron clouds, one lying above and the other lying below a plane passing through the nuclei.
4. Its electron cloud is symmetrical about the internuclear axis.	4. Its electron cloud is not symmetrical about the internuclear axis.

Some More Questions From Chemical Bonding and Molecular Structure Chapter

Name the conditions for the formation of an ionic bond between two atoms.

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(ii) a non-metal and another non-metal?

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Out of Na and K, which will form a more stable ionic bond?

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