Question

The shape of $C{H_3}^ +$ is triangular planar if true enter $1$ else other $0$?

Answer 1

- Atoms bond together to form molecules that have different sizes and shapes. Molecular shape determines several properties of substances like polarity, reactivity. Physical and chemical properties depend on the geometry of a molecule.

Complete step by step answer:
- Atoms are usually not capable of free existence except noble gases. However, a group of atoms is found to exist together as one species with characteristic properties. Such a group is called a molecule. The attractive force which holds various constituents (atoms, ions) together in a molecule is called a chemical bond.
- The shape of a molecule depends upon the number of valence shell electron pairs (bonded and non-bonding electron pairs) is referred to as a bond pair while the unshared/nonbonding pair of electrons on an atom is referred to as a lone pair.
- Electron pairs around the central atom exert repulsive force on one another as possible so that the forces of repulsion are minimised and the shape of the molecules are different.
- The shape of $C{H_3}^ +$ is a triangular planar in which $C$ carry positive charge is called carbocation. In $C{H_3}^ +$ there are three bond pairs and no lone pair.

Bond angle- the angle between the lines representing the directions of the bond is called the bond angle. It can be measured by X-ray analysis or by some other spectroscopic methods such as infra-red spectroscopy. The bond angle in the triangular planar is ${120^0}$.
- The geometry of the molecules is triangular planar have $s{p^2}$ hybridisation at the central atom $\left( C \right)$

Note: Molecular shape determines several properties of a substance including- reactivity, polarity, phase of matter, colour, magnetism, biological activity.
- Number of domains around the central atom determines the geometrical arrangement.