More Classes
5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject
Other Links
Go to Home
Online Tests
PPSC Chemistry Full Book Test MCQs With Answers
Question # 1
What is the colour of pulp obtained from chemical pulping.
Choose an answer
Black
Brown
Blue
Red
Previous
Skip
Next
Question # 2
Is a peroxy acid
Choose an answer
H2SO5
H2S2O6
H2SO4
H2S2O7
Previous
Skip
Next
Question # 3
The following oxo acids have been arranged in the order decreasir acid strength identify the correct order.
Choose an answer
III > IV > II > I
III > II > I >IV
I > II >III > IV
IV > III > II > I
Previous
Skip
Next
Question # 4
Which of the following is not a physical test.
Choose an answer
Colour test
Flame test
Beed test
Wet test
Previous
Skip
Next
Question # 5
An example of cyclic polyterpenoid is
Choose an answer
Myrcene
Alcoholic
Synthetic rubber
Natural rubber
Previous
Skip
Next
Question # 6
Which of the following process is involved in nitrogen flotation
Choose an answer
Non symmetric fixation of nitrogen
Fixation by soil bacteria
Fixation by yeast
Fixation by blue green algae
All above
Previous
Skip
Next
Question # 7
Which is the strongest reducing agent.
Choose an answer
HF
HCl
HBr
HI
Previous
Skip
Next
Question # 8
The compound contains two types of X and Y its crystal structure is a cubic lattice with X-atoms at the corners of the unit cells and Y-atom t the body centre, The simplest formulae of this compound is.
Choose an answer
X2Y
XY
XY2
X8Y
Previous
Skip
Next
Question # 9
If there are only two components in a solution with mole fraction X
A
and X
B
then which of the following relation is correct.
Choose an answer
X
A
+ X
B
= 0
X
A
+ X
B
> 1
XA = XB < 1
XA = 1 - XB
Previous
Skip
Next
Question # 10
Glycerol on dehyeration gives
Choose an answer
Allyl alcohol
Aerolein
CHOH = C= CHOH
-CHO -CHOH -CH2OH
Previous
Skip
Next
Question # 11
The current voltage characteristics forms the basis of.
Choose an answer
Thermal analysis
Potentiometry
Polarography
Colorimetry
Previous
Skip
Next
Question # 12
At higher altitudes, the boiling point of water is lowered because.
Choose an answer
Atmospheric pressure is low
Temperature is low at high altitude
Atmospherics pressure increase
None of the above
Previous
Skip
Next
Question # 13
Photochemical smog is caused primarily by
Choose an answer
CO
CO2
NO2
O3
Previous
Skip
Next
Question # 14
Which of the following pairs shows diagonal relationship
Choose an answer
Li and Mg
Na and K
Zn and Cd
Li and BE
Previous
Skip
Next
Question # 15
Halogens are coloured because.
Choose an answer
They are strong oxidant
Their molecules are held together by weak van der Waals forces
Their atoms absorb radiations form visible range causing the excitation of valence electrons to higher energy of levels
Their molecules absorb light radiation forming the oxcited state.
Previous
Skip
Next
Question # 16
The temperature at which the vapour pressure becomes equal to external pressure is called.
Choose an answer
Saturation point
Critical temperature
Consolute temperature
Boiling point
Previous
Skip
Next
Question # 17
Which of the following have identical bond order.
Choose an answer
CN- and O2-
CN - and NO+
O2- and CN+
NO+ and CN+
Previous
Skip
Next
Question # 18
Hydrogen gas will not redue
Choose an answer
Heated cupric oxide
Headed ferric oxide
Heated stannic oxide
Heated aluminium oxide
Previous
Skip
Next
Question # 19
In vinyl cyanide, the number of a bonds in
Choose an answer
2
3
1
4
Previous
Skip
Next
Question # 20
The correct order of electron affinities is.
Choose an answer
C > Si, > Na > Ar
Si > Cl > Na > Ar
C > Na > Si > Ar
C > Si > Ar > Na
Previous
Skip
Next
Question # 21
In which polymerization branching of chain cannot be possible.
Choose an answer
Free radical
Cationic
Anionic
Anionic and Zieglar Natta
Previous
Skip
Next
Question # 22
The process of identifying the component present in a sample is called.
Choose an answer
Quantitative analysis
Qualitative analysis
Volumetric analysis
Gravimetric analysis
Previous
Skip
Next
Question # 23
The molecule returns from the first excited triplet sate to the ground state singlet. The light emitted in known as.
Choose an answer
Inter system crossing
Phosphorescence
Fiuoreacence
Quenching
Previous
Skip
Next
Question # 24
In order to give strength and elasticity natural rubber is heated with.
Choose an answer
Sulphur
Oxygen
Nitrogen
Chlorine
Previous
Skip
Next
Question # 25
Which of the following does not belong in the group of herocyclic dyes.
Choose an answer
Acridine
Cyanine
Methylene blue
Amido black
Previous
Skip
Next
Question # 26
Both the elements are typical non metals.
Choose an answer
B & Ai
B & Si
Al & Si
Any of above
Previous
Skip
Next
Question # 27
Which of the following solids is a better conductor of electricity.
Choose an answer
Pore NaCl cyrstal
Diamond
Graphite
Marble pieces
Previous
Skip
Next
Question # 28
Nitrobenzen can be prepared from benzene by using a mixture of conc. HNO3 and conc. H2SO4 In the nitrating mixture. HNO3 acts as a.
Choose an answer
Base
Acid
Oxidizing agent
Catalyst
Previous
Skip
Next
Question # 29
Codon for amino acid glycinc is not represented by base pair
Choose an answer
GCA
GGC
GGA
GGU
Previous
Skip
Next
Question # 30
What is a coal that has been previously burned in an oxygen poor environment?
Choose an answer
Tuyere
Coke
Silver
Diamond
Previous
Skip
Next
Question # 31
The smallest cluster of carbon atoms in Bucky balls known till today consists of ___________ carbon atoms.
Choose an answer
75
20
60
15
Previous
Skip
Next
Back