Question

What is the structure of the carbonyl group?
A) Tetrahedral
B) Trigonal planar
C) Pyramidal
D) Linear

Answer 1

In organic chemistry carbonyl group plays a major role. Aldehyde and ketone have a carbonyl group. Organic acids also have a carbonyl group in the acid functional group. The covalent bond is important for organic chemistry. This covalent bond depends on the mutual sharing of electrons between the atoms in the molecules. In that mutual sharing of electrons in the atom, some overlapping of orbitals are also involved. In this overlapping of orbitals, involve the mutual sharing of electrons in the atom.

Complete answer:
The overlapping are classified as two types are head wise overlapping and sidewise overlapping. There are two types of covalent bonds. There are sigma bond and pi bond. The sigma bond arises due to the head-wise overlapping of the atomic orbital in the molecular orbitals. The pi bond arises due to the side-wise overlapping of the atomic orbitals in the molecular orbitals.
The hybridisation carbon atom is $s{p^3}$. Hence, the bond angle between carbon and other atoms in the structure is . The structure of a molecule is tetrahedral.
There are two bonds between carbon atom and oxygen atom in carbonyl group are sigma bond and pi bond. That the reason, the hybridisation of carbon atom in carbonyl group is $s{p^2}$. Hence, the bond angle between carbon and other atom in the structure is $120^\circ$. The structure of molecule is Trigonal planar. All the bones are in the same plane of carbon atom in the carbonyl group.
Hence, the structure of the carbonyl group is Trigonal planar.

Option B is correct. Because the structure of carbonyl group is Trigonal planar.

Note:
We need to know that the symbol of oxygen is ${\text{O}}$. Oxygen is one of the sixteen groups in the periodic table. The mass number of Oxygen is $16$. The atomic number of Oxygen is $8$. The symbol of carbon is ${\text{C}}$. Carbon is one of the fourteen groups in the periodic table. The mass number of carbon is $12$. The atomic number of carbon is $6$. In chemistry, periodic tables play a vital role. In the periodic table there are totally $118$ elements. In the periodic table there are totally $18$ columns and $7$ rows. The columns are called groups. Hence, $18$ groups in the periodic table. The rows are called periods. Hence, totally $7$ period in the table. The atomic number of the element is nothing but the number of electrons or number of protons. The mass number of the atom is nothing but the sum of the number of protons and number of neutrons.