Electrolytes are compounds containing

The atomic numbers of the elements $X, Y, Z$ are $a, a+1, a+2$ respectively. $Z$ is an alkali metal. The nature of bonding in the compound formed by $X$ and $Z$ is

Which of the following is least ionic?

If an element in group $2$ forms a compound with an element in group $17$ of the periodic table,the compound formed is likely to

Among the following,which one has the highest cation to anion size ratio?

Given below are two statements:
Assertion $(A)$: Ionic compounds are formed by non-directional bonds.
Reasoning $(R)$: They are soluble in nonpolar solvents.
The correct answer is: