The element X [1s2, 2s22p6,3s23p5] reacts with Y (atomic no.= 1) to form
Solution
Which of the following shows linear structure?
Solution
Acetylene has sp hybridization and linear structure CH ≣ CH. Hence, option (c) is correct.
In an octahedral structure, the pair of d orbitals involved in d2 sp3 hybridization is
Solution
Only those d orbitals whose lobes are directed along X, Y and Z directions hybridise with s and p orbitals. In other three d orbitals namely dxy, dyz and dxz, the lobes are at an angle of 45° from both axis, hence the extent of their overlap with sand p orbitals is much lesser than dx2-y2 and dz2 orbitals.
In which one of the following molecules the central atom said to adopt sp2 hybridization?
Solution
BF3 involves sp2-hybridization.
Which of the following molecules does not have a linear arrangement of atoms ?
Solution
For linear arrangement of atoms the hybridisation should be sp (linear shape, 180° angle). Only H2S has sp3-hybridization and two lone pair of electrons on sulphur atom hence has angular shape while C2H2,BeH2 and CO2 all involve sp-hybridization and hence have linear arrangement of atoms.
The bond length in LiF will be
Solution
We know that size of Na+ ion is greater than Li+ ion.Since bond length is directly proportional to atomic radius.Therefore,the bond length in LiF is less than that of NaF. Option (a) is correct.
Which of the following does not have a tetrahedral structure?
Solution
BH3 has sp2 hybridization and hence does not have tetrahedral structure while all others have tetrahedral structures.
Which one of the following has the shortest carbon carbon bond length ?
Solution
The bond length decreases in the order sp3 > sp2 > sp.Because of the triple bond, the carbon-carbon bond distance in ethyne is shortest.
Equilateral shape has
Solution
Equilateral or triangular planar shape involves sp2 hybridization.
Following are the molecules or ions of the type AH3 where A is the central atom. In which of them does the central atom A use its sp2 hybrid orbitals to form A-H bonds ?
Solution
CH3+ has sp2 hybridization because S orbital has one electron and p orbitals of central atom C have only two electrons. Therefore s and 2p orbitals participate in hybridization.
