Question

Determine the correct molecular geometry (from left to right about each interior atom in ch3ch2nh2.

Answer 1

Answer : The molecular geometry of interior carbon atom is tetrahedral.

Explanation :

Now we have to determine the hybridization of the given molecule.

Formula used :

`\text{Number of electron pair}=(1)/(2)[V+N-C+A]`

where,

V = number of valence electrons present in central atom

N = number of monovalent atoms bonded to central atom

C = charge of cation

A = charge of anion

The given molecule is,
`CH_3-CH_2-NH_2`

In this compound, the interior atom or central atom is carbon and
`CH_3`,
`NH_2` and 2 hydrogen atoms are neighboring atoms.

`\text{Number of electrons}=(1)/(2)* [4+4]=4`

Number of bond pairs = 4

Number of lone pairs = 0

The number of electron pair are 4 that means the hybridization will be
`sp^3` and the electronic geometry and the molecular geometry of the molecule will be tetrahedral.

Hence, the molecular geometry of interior carbon atom is tetrahedral.

Answer 2

Molecular geometry is used to describe the shape and arrangement of the atoms in a molecule. For CH3CH2NH2, the interior atoms are C-C-N. From left to right, the molecular geometry of this molecule is trigonal planar for C atom, bent for the center C atom and tetrahedral for N atom.