Question

how to determine the hybridization and geometry of interhalogen compounds
XX, XX3, XX5, XX7

Answer 1

Hint : A molecule with two or more distinct halogen atoms (fluorine, chlorine, bromine, iodine, or astatine) and no atoms from any other group is called an interhalogen compound. The majority of known interhalogen chemicals are binary (composed of only two distinct elements). In general, their equations are $X{Y_n}$ , where n = 1, 3, 5, or 7, and X is the less electronegative of the two halogens. Because halogens have odd valances, the value of n in interhalogens is always odd. They're all susceptible to hydrolysis and ionisation, resulting in polyhalogen ions. Because astatine is very radioactive, those created with it have a very short half-life.

Complete Step By Step Answer:
Although the spatial arrangement of the four electron pairs (bp = 1 and lps = 3) around the core chlorine atom is tetrahedral in the XX type, the form of the AX molecule is deformed and becomes linear owing to the presence of three lone pairs of electrons in three hybrid orbitals.
In XX3, the core is the X atom. There are three bond pairs and two lone pairs of electrons in this compound. It is subjected to $ s{p^3} $ . The trigonal bipyramidal (T-shaped) geometry is the outcome of d hybridization. In XX5, the center is the X atom. There are 5 bond pairs and 1 lone pair of electrons in this compound. It is subjected tO $s{p^3}{d^2}$ . The octahedral (square pyramidal) geometry is the outcome of hybridization.
In XX`7, the central atom is X. There are 7 bond pairs and 0 lone pairs of electrons in this compound. It is subjected to $\;s{p^3}{d^3}$ . Pentagonal bipyramidal geometry is the consequence of hybridization.

Note :
Covalent gases make up the majority of interhalogens. Some interhalogens, particularly those containing bromine, are liquids, while the majority of interhalogens containing iodine are solids. The majority of interhalogens made up of lesser halogens are colourless, whereas those made up of heavier halogens have a darker hue due to their larger molecular weight. Interhalogens and halogens are comparable in this regard. The bigger the difference in electronegativities between the two halogens in an interhalogen, the higher the interhalogen's boiling point. Interhalogens are diamagnetic in nature. The size of the component halogens increases the bond length of interhalogens in the XY series.