Why is `MgCl_(2)` molecule linear whereas the molecules of `SnCl_(2)` chloride has angulare shape ?

Why is acetylene molecule linear?

The molecule of CO_(2) is linear whereas that of SnCl_(2) is angular why?

XeF_(2) molecule is linear molecule but it is sp^(3)d hybridized. Why?

The following are aresome statement about oxides of VA group element I) N_(2)O molecule is linear II) NO_(2) molecule is angular III) N_(2)O_(5) molecule is angular The correct combination is

The following are some statements about oxides of VA group elements I) N_(2)O molecule is linear II) NO_(2) molecule is angular III) N_(2) O_(5) molecule is angular The correct combination is

Why is BeCl_(2) molecule linear, but BF_(3) is trigonal planar?

The shape of SO_2 molecule is

The shape of SO_2 molecule is

Why is methane molecule tetrahedral in shape?

Explain the following : (a) HCl is a covalent compound but it ionises in the solution. (b) The molecule of MgCl_(2) is linear whereas that of SnCl_(2) is angular.