Chemistry - PERIODIC TABLE Question with Solution | TestHub

Consider total number of correct statement(s) / order(s) among following.

(1) Ionization energy order : $\mathrm{B}>\mathrm{T}\ell >\mathrm{Ga}>\mathrm{A}\ell >\mathrm{In}$

(2) Acidic strength order; ${\mathrm{N}}_2\mathrm{O}<\mathrm{NO}<{\mathrm{N}}_2{\mathrm{O}}_3<{\mathrm{NO}}_2<{\mathrm{N}}_2{\mathrm{O}}_5$

(3) Electronegativity order; $\mathrm{B}>\mathrm{Al}>\mathrm{Ga}>\mathrm{In}>\mathrm{T}\ell$

(4) Atomic radius order ; $\mathrm{Zr}>\mathrm{Hf}$

(5) Lattice energy order : $\mathrm{NaF}>{\mathrm{MgF}}_2>{\mathrm{AlF}}_3$

(6) Among oxides, CO is neutal, GeO is Acidic and SnO is amphoteric.

(7) Ionic radius of ${\mathrm{H}}^{-}$is small than ${\mathrm{Br}}^{-}$