Arrange the following ionic compunds in order of increasing ionic character :
`{:(,,KF,KCL,KBr,Kl),(,,A,B,C,D):}`

Options

A. `A lt B lt C lt D`
B. `D lt C lt B lt A`
C. `B lt A lt C lt D`
D. `C lt A lt B lt D`

Answer

A

Explanation

In all the given species, capation is common, thus onic character depends upon the size of anion. Smaller the anion, larger is the ionic character of the compound. The order of sizer is
`F^(-) lt Cl^(-) lt Br^(-) lt l^(-)`, thus order of ionic character is `KF gt KCl gt KBr gt Kl`.