Question

Which is correct for Gp.14 elements :-

(1) Stability of dihalides CX2 < SiX2 < Ge2X2 < PbX2 < SrX2
(2) Tendency of catenation increases down the group
(3) They all form oxides with formula M2O2
(4) Acidic strength of dioxide regular decrease

Answer 1

Answer on Question #57513 – Chemistry - Inorganic Chemistry

Question:

Which is correct for Gp.14 elements :-

(1) Stability of dihalides CX2 < SiX2 < Ge2X2 < PbX2 < SrX2

(2) Tendency of catenation increases down the group

(3) They all form oxides with formula M2O2

(4) Acidic strength of dioxide regular decrease

Answer:

The correct answers are: 1) and 4).

1) Metallic character increases down the group therefore stability of element having valence two increases.

2) This is incorrect, because the stability of p-p interactions between atoms decreases down the group. Orbitals having high azimuthal quantum number form weak interatomic bond.

3) Only Ge can form that oxide.

4) Acidic strength of dioxide decreases, because metallic character of elements increases down the group.

www.AssignmentExpert.com