PPSC LECTURER CHEMISTRY ORIGINAL PAPER -PPSC LECTURER PAST PAPERS-PAST PAPERS PPSC
WRITTEN TEST FOR RECRUITMENT TO THE POSTS OF LECTURER CHEMISTRY (BS-17) (MALE & FEMALE) IN PUNJAB HIGHER EDUCATION DEPARTMENT-2017. PPSC CHEMISTRY LECTURER ORIGINAL PAPER 2017-PPSC PAST PAPERS-PPSC PAST PAPERS.
01. AX2E type compounds are:
(a) V-shaped
(b) Non-planer
(c) T-shaped
(d) Perfectly Trigonal Planer
02. The value of e/m ratio of electron is _______ C/Kg.
(a) 1.7588*10^11
(b) 9.1093*10^11
(c) 1.8725*10^34
(d) 1.7582*10^11
03. Crystalline solids don’t have:
(a) Compressibility
(b) Characteristic geometry
(c) Rigidity
(d) All of these
04. A mixture of benzene and toluene forms:
(a) Azeotropic mixture
(b) Suspension
(c) Nearly ideal solution
(d) Non-ideal solution
05. Benzene cannot undergo:
(a) Substitution reaction
(b) Addition reaction
(c) Oxidation reaction
(d) Elimination reaction
06. CaMg2(SiO ) is the composition of:
Asbestos
Calcite
Dolomite
Talc
07. Splitting of spectral lines when atoms are subjected to strong electric field, effect is called:
Compton effect
Stark Effect
Zeeman Effect
Photoelectric effect
08. which of the following is the weakest base?
Ammonia
Pyridine
Pyrolle
Aniline
09. German silver is an alloy of:
Cu, Zn, Ni
Cu, Sn ,Fe
Ni, Zn, Fe
Cu, Zn, Fe
10. Which is the sequence of regions of electromagnetic spectrum
?
Cosmic rays, X-rays, Visible and UV
Microwave, X-rays, Visible and UV
UV, Cosmic, Microwave, X-rays and Visible
Visible, UV, X-rays, Cosmic
11. Which of the following is the basic component of smog?
PBN
PAN
CFC
All of these
12. The number of peaks observed in mass spectrometry shows:
Number of isotopes
Mass of Isotopes
Charge of isotopes
Relative abundance of isotopes
13. A real gas obeying Van der Waal’s equation resembles ideal gas if;
Both a & b are small
Both a & b are large
a is small & b is large
a is large & b is small
14. A perfect crystal at zero Kelvin has:
zero enthalpy
zero entropy
maximum enthalpy
maximum entropy
15. One calorie is equal to how many joules?
4.184 J
0.4184 J
41.84 J
418.4 J
16. The molarity of solution containing 10g of NaOH dissolves per cubic meter of solution is:
0.25 M
0.5 M
1 M
2 M
17. Which technique is used to determine the absorption if radiations?
Dilatometric method
Refractrometric method
Optical rotation method
Spectrometry
18. A large molecule built up by the repetition of small simple chemical units is called:
Carbohydrates
Lipids
Enzymes
Polymers
19. The composition of light soda ash is:
Na2CO3 anhydrous
Na2CO3.H2O
Na2CO3.10H2O
Na2CO3.5H2O
20. The formula of Mohr’s salt is:
21. Chile saltpetre has the chemical formula:
NaNO3
KNO3
Na2CO3.H2
Na2B4O7
Also Read This: Available PHD Scholarship