RPSC-Assistant-Conservator-of-Forest-Chemistry-Paper-2011
Sr. No | Questions with multiple options |
1. | How many orbitals will be present in the 3rd shell
(a) 3 (b) 5 (c) 6 (d) 9 |
2. | Element having quantum number n = 4 and s=-1/2 will possess following number of electrons:
(a) 16 (b) 8 (c) 2 (d) 12 |
3. | Elements with atomic number 57 belongs to:
(a) s – block (b) p – block (c) d – block (d) nobel group |
4. | Which element will form cation most easily?
(a) Ne (b) Mg (c) Sr (d) Li |
5. | Number of unpaired electrons present in chromium (At. No. 24) atom is:
(a) 5 (b) 4 (c) 6 (d) 3 |
6. | The interpretation of 3 unpaired electrons in electronic configuration of Nitrogen atom is based on:
(a) Auf bau Principle (b) Pauli’s rule (c) Hund’s rule (d) (n+1) rule |
7. | Highest lattice energy will be of:
(a) Lil (b) LiCI (c) LiF (d) NaF |
8. | The constituents of stainless steel are:
(a) Cu + Sn + Fe (b) Fe + Cu + Zn (c) Fe + Cr + Ni (d) Fe + Co + Ni |
9. | Which of the following is related with sequence: F>CI>I
(a) Electron affinity (b) Electronegativity (c) Atomic radius (d) Boiling point |
10. | The compounds of alkaline earth metals have the following magnetic nature:
(a) Diamagnetic (b) Paramagnetic (c) Ferromagnetic (d) Antiferromagnetic |
11. | Which of the following elements is the end product of natural radioactive series?
(a) Pb (b) Sn (c) C (d) Bi |
12. | Asbestos constains:
(a) K and Mg (b) Ca and Mg (c) Zn and Mg (d) Na and Ca |
13. | For artificial transmutation of nuclei the most effective one is:
(a) Proton (b) Deutron (c) Helium nuclei (d) Neutron |
14. | The crystal structure of NaCl is:
(a) Rhombohedral (b) Cubic (c) Monoclinic (d) Triclinic |
15. | The atomic number of an element is 22. The highest oxidation state shown by it will be:
(a) 1 (b) 2 (c) 3 (d) 4 |
16. | Atomic numbers 13, 31, 49 represent the following family
(a) Carbon (b) Boron (c) Oxygen (d) Halogen |
17. | When an allotrope of carbon is heated in an electric arc in the presence of Argon, it produces:
(a) Crown ether (b) Graphite (c) Fullerence (d) Diamond |
18. | Froth floatation process is related with following form of ore:
(a) Oxide (b) Sulphide (c) Chloride (d) Carbonate |
19. | Heaviest metal is :
(a) Tungsten (b) Osmium (c) Gold (d) Lowrencium |
20. | The heating in hot air to oxidize sulphur from pyrites, is called
(a) Calcinations (b) Oxidation (c) Roasting (d) Smelting |
21. | Strongest metallic bond is present in:
(a) Fe (b) Cr (c) Mn (d) Sc |
22. | Cyanide process is used for the extraction of:
(a) Ag (b) Au (c) Cu (d) Zn |
23. | Diethylenetriamine ligand is:
(a) Monodentate (b) Pentadentate (c) Bidentate (d) Tridentate |
24. | The second most abundant element on the earth’s crust is:
(a) Aluminium (b) Copper (c) Silica (d) Carbon |
25. | Which of the following shows sandwich structure?
(a) Fullerene (b) Crown ether (c) Ferrocene (d) Porphyrin |
Data Collected By – K. Jeyanthi | |
Published On – 9th Dec 2021 | |
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