The type of hybridization of boron in diborane is
sp
sp2
sp3
sp3d2
Specify the coordination geometry around and hybridization of N and B atoms in a 1:1 complex of BF3 and NH3
N : tetrahedral, sp3; B : tetrahedral, sp3
N: pyramidal, sp3: B : Pyramidal, sp3
N: pyramidal, sp3; B: planar, sp3
N: Pyramidal, sp3; B ; tetrahedral, sp3
Corundum is
AI2(SO4)3
AI2O3.H2O
AI2O3.2H2O
AI2O3
Borazole is known as
Organic benzene
Organic compound
Inorganic compound
Inorganic benzene
Which of the following statements is correct?
BCI3 and AICI3 are both Lewis acids and BCI3 is stronger than AICI3
BCI3 and AICI3 are both Lewis acids and AICI3 is stronger than AICI3
BCI3 and AICI3 are both equally strong Lewis acids
Both BCI3 and AICI3 are not Lewis acids
Which of the following is not correct in case of boron nitride, BN?
It is a good insulator
It is hard because in one of the modifications it has diamond (zinc blende) like structure
It shows magnetc properties
It is chemically unreactive
Alumnium becomes passive in
Conc: HNO3
H2CrO4
HCIO4
All
Inorganic graphite is
B2O3
BN
B4C
B3N3H6
Alumina may be converted into anhydrous ALCL3 by
Heating it with conc.HCI
Heating it in a current of dry chlorine
Heating it with rock salt
Mixing it with carbon and heating the mixture in a current of dry chlorine.
Which of the flowing is most abundant among group 13 elements in the earth’s crust?
B
AI
Ga
In