Question

The electrovalence of Cs in CsI3 is….​

Answer 1

Answer:

CsI

3

→Cs

+

+I

3

−

⇒Cs cannot show +3 oxidation state.

⇒I

2

molecules are too large to be accommodated in the lattice.

Answer 2

The electrovalence of Cs is +1.

• The compound given in question is named as caesium triiodide.
• In the compound, caesium binds with iodine ions which are present as I3-.
• I3- forms by binding of I2 and I- ion. The molecule has linear structure.
• Thus iodide ion is the negative ion and ceasium ion is positive ion.
• Caesium is an alkali metal while iodine is a non metal.