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
Which of the following analytical technique is used for the separation of an interfering substance or analyte from the mixture.
Choose an answer
Precipitation
Distillation
Electrode position
All above these
Previous
Skip
Next
Question # 2
The number of Glass products now manufactured is.
Choose an answer
25,000
75,000
50,000
All of these
Previous
Skip
Next
Question # 3
Who was the first scientist to describe that substance having Nano dimensions possess altogether different and unique properties.
Choose an answer
Richard Feynamann
Erick Drexler
Archimedes
Michael Faraday
Previous
Skip
Next
Question # 4
Which of the following statement is not true regarding Open Hearth process.
Choose an answer
No iron is lost
The process is economical and simple
Steel obtained is of high quality
Scrap iron cannot be used in this process.
Previous
Skip
Next
Question # 5
Which of the following is strongest reducing agent.
Choose an answer
Be
Mg
Ca
Sr
Previous
Skip
Next
Question # 6
Lewis concept explain the formation of
Choose an answer
Ionic bond
Covalent bond
Co-ordinate bond
Chemical bond
Previous
Skip
Next
Question # 7
B.P of heavy water is
Choose an answer
equal to that of ordinary water
greater than that of ordinary water
Less than that of ordinary water
equal to that of distilled water
Previous
Skip
Next
Question # 8
A red color gas, on condensing ti gives a dark blue liquid.
Choose an answer
NO
N2O
N2O3
N2O4
Previous
Skip
Next
Question # 9
Which of the following pair on aldol condensation followed by dehydration gives methyl vinyl ketone.
Choose an answer
HCHO and CH3COCH3
HCHO and CH3CHO
CH3CHO and CH3CHO
CH3COCH3 and CH3COCH3
Previous
Skip
Next
Question # 10
Commercial detergents contain mainly ___________
Choose an answer
RCOON
RONa
RSNa
All above
Previous
Skip
Next
Question # 11
VBT does not edplain
Choose an answer
Absorption spectra
Color of transition metal ion
Heat of formation
All above
Previous
Skip
Next
Question # 12
Bond angle is minimum in
Choose an answer
H2O
CO2
NH3
CH4
Previous
Skip
Next
Question # 13
Oxytocin, a pituitary hormone to
Choose an answer
Amino acid
Polypeptide
Protein
Conjugated protein
Previous
Skip
Next
Question # 14
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 # 15
Which of the following play significant role in depletion of ozone layer.
Choose an answer
Oxides of nitrogen
Oxides of carbon
Oxides of sulphur
None of above
Previous
Skip
Next
Question # 16
The following ceramic product is mostly used as pigment in paints.
Choose an answer
TiO2
SiO2
uo2
ZrO2
Previous
Skip
Next
Question # 17
Formula of orthophosphoric acid
Choose an answer
H2PO4
H3PO2
H3PO2
H2P2O5
Previous
Skip
Next
Question # 18
The plate height is the length of the column divide by
Choose an answer
Length of the column
Width of the column
Number of theoretical plates
Number of components of the mixture.
Previous
Skip
Next
Question # 19
Which of the following methods gives the number average molecular weight of a polymer.
Choose an answer
Light scattering method
Osmotic method
Sedimentation equilibrium method
Viscosity method
Previous
Skip
Next
Question # 20
Which parameter of a chemical reaction will change with the use of a catalyst.
Choose an answer
Delta F, change in free energy
Delta S, change in entropy
Delta E , change in internal energy
K, the rate constant
Previous
Skip
Next
Question # 21
Which of the following acid radical gives chromyl chorate test.
Choose an answer
F-
I-
Cl-
Br-
Previous
Skip
Next
Question # 22
Urea an enzyme used to estimate urea is a
Choose an answer
Hydrolytic enzyme
Oxidative enzyme
Reductive enzyme
Iso me rising enzyme
Previous
Skip
Next
Question # 23
Which of the following cast irons is a high carbon silicon alloy.
Choose an answer
Gray iron
White iron
Malleable iron
Alloy iron
Previous
Skip
Next
Question # 24
Which of the following statement is not related with direct use of solar energy.
Choose an answer
It is used for space heating of buildings
It can be used to produce electrical power using photovoltaic cells
It can be used to produce hydrogen gas
It can be used start motor vehicle
Previous
Skip
Next
Question # 25
Lime water is an aqueous solution of.
Choose an answer
MgSO4
Ca (OH)2
CaCO3
CaSO4
Previous
Skip
Next
Question # 26
The sample characteristics affecting the weight loss curve include.
Choose an answer
Amount of sample
Sample particle site
Heat of decomposition reactions
All
Previous
Skip
Next
Question # 27
The variation of enthalpy of reaction with temperature is given by.
Choose an answer
Hesse's law
Clasisus Clapayron equation
Kirchoffs equation
Arrhenious equation.
Previous
Skip
Next
Question # 28
Which of the following a -amino acid is not capable of exhibiting optical isomerism.
Choose an answer
Glycine
Leucine
Arginine
Alanine
Previous
Skip
Next
Question # 29
Which of the following process is not sorbent separation technolgy.
Choose an answer
Penex
Parex
Molex
Olex
Previous
Skip
Next
Question # 30
__________ is used for fruits, vegetables and tobacco
Choose an answer
Potassium Chloride
Potassium Sulphate
Potassium nitraite
All above
Previous
Skip
Next
Question # 31
According to recent view which is the correct representation of hydrated proton in aqueous solutions.
Choose an answer
H+
H9O3+
H9O4+
H2O+
Previous
Skip
Next
Back