2nd Year Chemistry MCQs F.Sc. Part 2
Chapter No.4
Group 5A and 6A Elements
Total MCQs = 47
11. The geometerical shape of PCl5 is (RWP 2014) (GRW 2016)
A. Octahedral
B. Square planner
C. Trigonal bipyramidal
D. tetrahedral
Answer:
C. Trigonal bipyramidal
12. In phophorous one of the 3p electron can be promoted to a vacant 3d orbitals giving: (RWP 2010)
A. 2 unpaired electrons in the valence shell
B. 3 unpaired electrons in the valence shell
C. 4 unpaired electrons in the valence shell
D. 5 unpaired electrons in the valence shell
Answer:
D. 5 unpaired electrons in the valence shell
13. Which of the following is not property of phophorus (LHR 2014)
A. It means light bearing
B. It does not exit free in nature
C. Rich source of Phosphorus is bone ash
D. It does not exit in allotropic forms
Answer:
D. It does not exit in allotropic forms
14. Molecular formula of white phosphorus is (BWP 2014) (FSD 2015)
A. P4
B. P8
C. P3
D. P2
Answer:
A. P4
15. Ortho Phosphoric acid has melting point: (LHR 2012) (SWL 2013)
A. 49 C
B. 45 C
C. 41 C
D. 50 C
Answer:
C. 41 C
