Column - I (Moles of AgCl per mole of compound)		Column - II (Secondary valencies)
p)	${\mathrm{PtCl}}_2\cdot 2{\mathrm{NH}}_3-$zero	i)	2
q)	${\mathrm{CoCl}}_3\cdot 4{\mathrm{NH}}_4-1$	ii)	3
r)	${\mathrm{PtCl}}_2\cdot 4{\mathrm{NH}}_3-2$	iii)	6
s)	${\mathrm{CrCl}}_3\cdot 6{\mathrm{NH}}_3-3$	iv)	4

	p	q	r	s
1	i	ii	iii	iv
2	ii	i	iv	iii
3	iv	iii	i	iii
4	iv	iii	iv	iii

(p) ${\mathrm{PtCl}}_2\cdot 2{\mathrm{NH}}_3-$zero: i.e. no ions are ionized, secondary valence=4

(q) ${\mathrm{CoCl}}_3\cdot 4{\mathrm{NH}}_3-1$  : one 'Cl' satisfies primary valence, secondary valence=6

(r) ${\mathrm{PtCl}}_2\cdot 4{\mathrm{NH}}_3-2$ : Two 'Cl' s satisfies primary valence, secondary valence=4

(s) ${\mathrm{CrCl}}_3\cdot 6{\mathrm{NH}}_3-3$ ; Three 'Cl' s satisfies primary valence, secondary valence=6