Question

Consider the following order:
(i) $HF>HCl>HBr>HI$ : Lewis basic character
(ii) $C{H}_4<CC{l}_4<C{F}_4$ : Electronegativity of central ‘C’- atom
(iii) $M{g}^{2+}+K^{+}<S^{2-}<S{e}^{2-}$ : Ionic radius
(iv) $Ni>Pd>Pt$ : Ionisation energy
(v) $A{s}^{5+}>S{b}^{5+}>B{i}^{5+}$ : Stable oxidation state
(vi) $LiF>NaF>KF>RbF$ : Lattice energy
(vii) $F^{-}(aq)>C{l}^{-}(aq)>B{r}^{-}(aq)>I^{-}(aq)$ : Electrical conductance
(viii) $L{i}^{+}<M{g}^{2+}<A{l}^{3+}$ : Hydration energy
(ix) $Cl>Br>F>I$ : : Electron affinity
(x) $BeC{l}_2<AlC{l}_3<SiC{l}_4$ : Lewis acidic character
Then calculate value of $(x-y)$, where $x$ and $y$ are correct and incorrect orders respectively

Answer 1

Answer: 4

(i), (ii), (iii), (v), (vi), (viii) &(ix) are true where as (iv), (vii) & (ix) are false