Consider the following statements:
Statement A: Vanadium pentoxide (V2O5) is used as a catalyst in the manufacture of H2SO4.
Statement B: The spin-only magnetic moment value of the transition metal halide employed in Ziegler–Natta polymerisation is 2.83 BM.
Statement C: The p-block metal compound employed in Ziegler–Natta polymerisation has the metal in +3 oxidation state.
Statement D: The number of electrons present in the outermost d-orbital of the transition metal halide employed in Ziegler–Natta polymerisation is 8.
Which of the following options is correct?
Let us examine each statement individually.
Statement A:
Vanadium pentoxide (V2O5) is the catalyst used in the Contact Process for the industrial manufacture of sulphuric acid. Therefore Statement A is correct.
Statement B:
A common Ziegler–Natta catalyst system contains titanium tetrachloride (TiCl4) along with triethyl aluminium Al(C2H5)3.
TiCl4 contains Ti4+ having d0 configuration and therefore no unpaired electrons. Hence its magnetic moment is not 2.83 BM.
Therefore Statement B is incorrect.
Statement C:
The co-catalyst used is generally triethyl aluminium, Al(C2H5)3. Aluminium belongs to the p-block and exists in the +3 oxidation state.
Hence Statement C is correct.
Statement D:
Titanium in TiCl4 possesses d0 configuration and not eight d-electrons.
Therefore Statement D is incorrect.
Only Statements A and C are correct.
Final Answer
Option (1) Only A and C are Correct