Which molecular geometry is least likely to occur with sp3 hybridization?
tetrahedral
trigonal planar
bent
trigonal pyramidal

Answer : The molecular geometry least likely to occur with hybridization is, trigonal planar.

Explanation :

In trigonal pyramidal:

Bond pair = 3

Lone pair = 0

The number of electron density around the central atom is 3.

That means these molecule have central atoms with 0 lone pair and 3 atoms bonded to them.  Thus, the molecular geometry will be, trigonal planar. For example :

There are three possibility of molecule to be hybridized which are tetrahedral, bent and trigonal pyramidal.

In tetrahedral:

Bond pair = 4

Lone pair = 0

The number of electron density around the central atom is 4.

That means these molecule have central atoms with zero (0) lone pair and four (4) atoms bonded to them.  Thus, the molecular geometry will be, tetrahedral. For example :

In bent:

Bond pair = 2

Lone pair = 2

The number of electron density around the central atom is 4.

That means these molecule have central atoms with 2 lone pair and 2 atoms bonded to them.  Thus, the electronic geometry is tetrahedral and molecular geometry will be, bent. For example :

In trigonal pyramidal:

Bond pair = 3

Lone pair = 1

The number of electron density around the central atom is 4.

That means these molecule have central atoms with 1 lone pair and 3 atoms bonded to them.  Thus, the electronic geometry is tetrahedral and molecular geometry will be, trigonal pyramidal. For example :

Hence, the molecular geometry least likely to occur with hybridization is, trigonal planar.

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explanation:

venn diagram is pictorial representation with of circles showing the relation between two finite sets or things. the intersection part of two circles conveys the relation present in between those sets or things.

here in the venn diagram of sand and salt two circles represent sand and salt. but the area falling under the intersection of these circle represents the mixture of sand and salt.

so, in a venn diagram the mixture will be placed in a middle that is in between the intersection of two circles.