Consider the following orders : -

CHEMISTRY · Subjective · A Level · Chemistry · Periodicity and periodic trends · Periodicity and periodic trends

Problem

Consider the following orders : - (i)

\text{HF} > \text{HCl} > \text{HBr} > \text{HI}

: Lewis basic character - (ii)

\text{CH}_4 < \text{CCl}_4 < \text{CF}_4

: Electronegativity of central 'C'-atom - (iii)

\text{Mg}^{2+} < \text{K}^+ < \text{S}^{2-} < \text{Se}^{2-}

: Ionic radius - (iv)

\text{Ni} > \text{Pd} > \text{Pt}

: Ionisation energy - (v)

\text{As}^{5+} > \text{Sb}^{5+} > \text{Bi}^{5+}

: Stable oxidation state - (vi)

\text{LiF} > \text{NaF} > \text{KF} > \text{RbF}

: Lattice energy - (vii)

\text{F}_{(\text{aq.})}^- > \text{Cl}_{(\text{aq.})}^- > \text{Br}_{(\text{aq.})}^- > \text{I}_{(\text{aq.})}^-

: Electrical conductance - (viii)

\text{Li}^+ < \text{Mg}^{2+} < \text{Al}^{3+}

: Hydration energy - (ix)

\text{Cl} > \text{Br} > \text{F} > \text{I}

: Electron affinity - (x)

\text{BeCl}_2 < \text{AlCl}_3 < \text{SiCl}_4

: Lewis acidic character Then calculate value of

|x - y|^2

, where

x

and

y

are correct and incorrect orders respectively.