Question

sr2+,ca2+,Ba2+ which have increasing polarizing power​

Answer 1

Answer:

Ca2+ have incresing polarizing power.

Ca2+> Sr+2> Ba+2

I hope it will helps you.

Answer 2

The increasing polarizing power is Ba2+ <Sr2+<Ca2+.

• The polarising power is the distortion produced by cation to the anion in a compound known as polarising power.
• In this, the anion is polarised and the tendency of the anion of getting polarised is known as polarizability.
• Polarising power is calculated by Fajan's rule.
• Fajan's rule states polarising power is directly proportional to the covalent character.
• Polarising power is directly proportional to the size of the anion and inversely proportional to the size of the cation.
• So, Sr2+, ca2+ and Ba2+ are ions of the 2nd group of the periodic table and the size of Ca2+ is the smallest and the size of Ba2+ is the largest. The smaller the action size larger the polarising power.
• So, polarising power of calcium ion is highest and barium ion is lowest.