Someone plez help me with these
1.correct starement(s) among the following is/are
a)increasing covalent character : LiCl<BeCl2<<Bcl3<<Ccl4
b)increasing solubility in water : Ca(OH)2< Sr(OH)2<Ba(OH)2
c)increasing solubility in water:Na2O<MgO<Al2O3
d)Kcl is more ionic as compared to AgCl
2.Match the follwing
A)Na3PO4 p)is basic to methyl orange
b)NAH2PO4 q)acidic to phenolphthalein
C)H3PO4 r)neutral to phenolphthalein
D)NA2HPO4 s)neutral to methyl orange
t)basic to phenolphthalein
-
UP 0 DOWN 0 0 1
1 Answers
3for1. In inorganic chemistry, Fajans' Rules, formulated by Kazimierz Fajans in 1923, are used to predict whether a chemical bond will be covalent or ionic, and depend on the charge on the cation and the relative sizes of the cation and anion. They can be summarized in the following table:
Ionic Covalent
Low positive charge High positive chargel
Large cation Small cation
Small anion Large anion
in 1.. statement b is false
