Question

Question 3 of 10 > Arrange the oxoacids of iodine according to strength. Strongest acid Weakest acid Answer Bank HIO, HO HO HIO,

Answer 1

answer) the acids referrs to the species gives hydrogen ion in the solution. if the hydrogen atom weakly bonded , then it easily released in solution and known as strong acids. if the hydrogen atom strongly bonded by other elements, then it is not easily released in solution and known as weak acids.

oxoacid; it is a acid compond that contains oxygen. this type of acids contains hydrogen, oxygen and atleast one another elements like halides( chlorine,bromine , iodine etc)

some examples are HClO3, HIO3, HNO2 etc

here, the strength of oxyacids depends on the number oxygen atoms that containes.this is due to the reason that, oxygen atoms shows high electronegativity, and it pulls the electron density towards it self. so the electron density move away from iodine . when the number of oxygen atoms increases , then the conjugate base of the acids become more negative. this more spread of the negative charge results in more stable the base. this makes the acid stronger.

here consider the acids

HIO3 , HIO , HIO4 ,HIO2

this oxo acids of iodine can be arranged according to their strength based on the number of oxygen atoms. here

HIO3 (3 oxygen) , HIO( 1 oxygen) , HIO2(2 oxygen) and HIO4(4 oxygen)

so based on the number of oxygen atoms the increasing order of acid strength of this oxoacids given by

HIO HIO2 HIO3 HIO4

here strongest acid is HIO4( 4 oxygen atoms) and

weakest acid is HIO( 1oxygen atom).