Consider the following three compounds

CHEMISTRY · Subjective · CBSE · Chemistry · Chemical Bonding and Molecular Structure · Chemical Bonding and Molecular Structure

Problem

Consider the following three compounds (i)

\text{AX}_{2n}^{n-}

, (ii)

\text{AX}_{3n}

and (iii)

\text{AX}_{4n}^{n+}

, where central atom

A

is 15^th group element and their maximum covalency is

3n

. If total number of proton in surrounding atom

X

n

and value of

n

is one, then calculate value of "

x^3 + y^2 + z

". (Where

x, y

and

z

are total number of lone pair at central atom in compound (i), (ii) and (iii) respectively).