Boron and Carbon FamilyHard
Question
If the unit cell of a mineral has cubic close packed (ccp) array of oxygen atoms with m fraction of octahedral holes occupied by aluminium ions and n fraction of tetrahedral holes occupied by magnesium
ions m and n respectively, are -
ions m and n respectively, are -
Options
A.
B.
C.
D.
Solution
Effective number of O-2 = 4
Effective number of Al+3 = 4 m
Effective number of Mg+2 = 8 m
⇒ By charge balance 12 m + 16 n = 8
3 m + 4 n = 2
Possible value of m and n from given equation are
m =
; n = 
Effective number of Al+3 = 4 m
Effective number of Mg+2 = 8 m
⇒ By charge balance 12 m + 16 n = 8
3 m + 4 n = 2
Possible value of m and n from given equation are
m =
; n = Create a free account to view solution
View Solution FreeMore Boron and Carbon Family Questions
For making good quality mirrors, plates of float glass are used. These are obtained by floating molten glass over a liqu...What volume of hydrogen gas, at 273 K and 1 atm, pressure will be consumed in obtaining 21.6 g of elemental boron (atomi...In metal carbonyl these is :-...Which one of the following is the correct statement?...In which of the following species is the underlined carbon having sp3 hybridisation?...