How many number of triatomic species are hypovalent ?
`CH_(3)^(oplus), C Cl_(2), NO_(2), ClO_(2), BeCl_(2), H_(2)S, BCl_(3), ClO_(2)^(Θ)`

How many number of tetratomic polar species are planar ? CH_(4), NH_(4)^(oplus), NO_(3)^(Θ), ClF_(3), Icl_(2)^(Θ), [I_(2) CN]^(oplus), SiCl_(4)

How many of the following are paramagnetic in nature. Cl_(2) O. ClO_(2), ClO_(3), Cl_(2) O_(6) , Cl(2) O_(7), ClO^(Ominus),ClO_(2)^(Ominus),ClO_(3)^(Ominus), ClO_(4)^(Ominus)

Find the total number of compounds/ions having linear shape. [Ag(CN)_(2)]^(-), HgCl_(2), SnCl_(2), NO_(2)^(+1), ClO_(2)^(+), AuCl_(2)^(-), Hg_(2)Cl_(2)

For which species are both bonds of equal length? (P) ClO_(2)^(-) (Q) NO_(2)^(-)

How many number of penta-atomic cationic species are having maximum 3-atoms in a plane ? NH_(3), BF_(4)^(Θ), NH_(4)^(oplus), SF_(4).PCl_(4)^(oplus), XeO_(2)F_(2), overset(oplus)(PCl_(3)F, SO_(2)Cl_(2)

Among the following how many molecules have multiply bonds OCl_(2), H_(2) F_(2), Cl_(2) O_(7), CaOCl_(2), I_(2) Cl_(6), ClO_(2), KIO_(3), HOF

How many among the following species can be classified as Lewis acids? overset(o+)(CH_(3)), Cl^(o+),CO_(2), "CCl"_(2), BCl_(3), BI_(3), Fe^(+2), AlCl_(3)