The pair with more ionic nature and less m.pt. respectively in lithium halides :

The pair with more ionic nature among lithium halides :-

The following hydride is having more ionic nature

If 'M' is a monovalent metal , the order of ionic character of their halides respectively is

Given below are two statements : One is labelled as Assertion A and the other labelled as Reason R. Assertion A : Lithium halides are some what covalent in nature. Reason R : Lithium possess high polarisation capability. In the light of the above statements, choose the most appropriate answer from the options given below :

Explain why potassium is more reactive than lithium and chlorine less reactive than fluorine.

The EN's of F, CI Br and I are 4.0 ,3.0, 2.8 and 2.5 respectively The hybrogen halide with a highest percentage of ionic character is .