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
Chemistry General Science Test Easy Mode MCQs With Answers
Question # 1
Molarity is the number of moles of solute dissolved in:
Choose an answer
1 kg of solution
100 g of slovent
Idm
3
of solvent
I dm
3
of solution
Previous
Skip
Next
Question # 2
positive ion hare formed by _________ of electrons.
Choose an answer
Gain
Loss
Sharing
Bonding
Previous
Skip
Next
Question # 3
________________ proposed that matter is composed of small particles.
Choose an answer
Greek
English's
Russian
Nil
Previous
Skip
Next
Question # 4
Which is used for industrial manufacture of NaCI?
Choose an answer
Daniel cell
Down's cell
Nelson's cell
None of these
Previous
Skip
Next
Question # 5
_________ elements naturally occurring.
Choose an answer
92
118
93
117
Previous
Skip
Next
Question # 6
Bronze (alloy) is a ____________
Choose an answer
Slolution
Mixture
a & b
Nil
Previous
Skip
Next
Question # 7
All metals are solid at ________________ temperature.
Choose an answer
Room
High
Low
None
Previous
Skip
Next
Question # 8
The formula of benzene is _________
Choose an answer
C6H6O3
C6H6
C12H22
Nil
Previous
Skip
Next
Question # 9
The 2nd and third periods are called
Choose an answer
short period
Normal period
Long period
Very long period
Previous
Skip
Next
Question # 10
First energy level is denoted by:
Choose an answer
K
L
M
N
Previous
Skip
Next
Question # 11
Atoms form chemical bonds to attain the electronic configuration of
Choose an answer
Halogens
Noble gases
Alkali metals
Alkaline earthmetals
Previous
Skip
Next
Question # 12
A bound formed between two amino acids is:
Choose an answer
Peptide linkage
Covalent bound
Hydrogen bound
Glycosidic linkage
Previous
Skip
Next
Question # 13
Monosaccharide consists of number of carbon atoms.
Choose an answer
2 to 4
4 to 8
3 to 9
5 to 10
Previous
Skip
Next
Question # 14
Which element protects teeth from decay?
Choose an answer
Potassium
Fluorine
Sodium
Calcium
Previous
Skip
Next
Question # 15
Equilibrium constant has no unit when number of moles of reactants and products are:
Choose an answer
same
Different
Both a and b
None of these
Previous
Skip
Next
Question # 16
Which acid is used for food preservation?
Choose an answer
Hydrochloric acid
Benzoic acid
Sulphuric acid
Nitric acid.
Previous
Skip
Next
Question # 17
Which colour of HI is ?
Choose an answer
Orange
Purple
Red
Colourless
Previous
Skip
Next
Question # 18
Jabir Bin Haiyan prepared.
Choose an answer
Nitric Acid
Hydrochloric acid
Sulphueric Acid
All of these
Previous
Skip
Next
Question # 19
Temporary hardness is due to the presence of bicarbonates of.
Choose an answer
Calcium
Magnsium
Both of them
None of them
Previous
Skip
Next
Question # 20
Which base is more corrosive?
Choose an answer
NH
4
OH
NaOH
Ca(OH)
2
AL(OH)
2
Previous
Skip
Next
Question # 21
Process of heating the concentrated ore to high temperature in excess of air is called.
Choose an answer
Roasting
Smelting
Bessemerization
All
Previous
Skip
Next
Question # 22
Guldberg and waage put forward law of mass action in:
Choose an answer
1860
1869
1870
1879
Previous
Skip
Next
Question # 23
The electrode reaction of a voltaic cell can be reversed when
Choose an answer
Concentrations of solutions are changed
Temperature is increased
Electrodes are interchanged
Electric circuit is employed to supply the source of electricity
Previous
Skip
Next
Question # 24
Vapour pressure of a substance does not depend upon.
Choose an answer
Temperature
Intermolecular forces
Surface area
Physical state of water
Previous
Skip
Next
Question # 25
The Van der Waals' equation explain the behaviour of.
Choose an answer
Ideal gas
Real gas
Vapours
Non ideal gases
Previous
Skip
Next
Question # 26
______ Molecule has zero dipole moment.
Choose an answer
CO
H2S
SO2
CH4
Previous
Skip
Next
Question # 27
Which gas has highest e/m ratio
Choose an answer
Hydrogen
Helium
Nitrogen
Oxygen
Previous
Skip
Next
Question # 28
Buffer action can be explained by
Choose an answer
Common ion effect
Law of mass action
Le Chateller's principle
All above
Previous
Skip
Next
Question # 29
Oxidation number of phosphorus in the compound is.
Choose an answer
+3
+4
+5
+6
Previous
Skip
Next
Question # 30
Gas equation is derived by combining
Choose an answer
Avogadro's and Charles's Law
Boyle's and Charles's Law
Avogadro's and Boyle's Law
Avogadro's, Boyle's and Charles's Law
Previous
Skip
Next
Question # 31
Molecule in which the distance between two carbon atoms in the largest is.
Choose an answer
C2H6
C2H4
C2H2
C6H6
Previous
Skip
Next
Question # 32
The optimum temperature for the synthesis of NH3 by Haber's process is.
Choose an answer
200
o
C
300
o
C
400
o
C
500
o
C
Previous
Skip
Next
Question # 33
Density of a gas is usually expressed in
Choose an answer
kg m-3
kg dm-3
g dm-3
g cm-3
Previous
Skip
Next
Question # 34
Which one of the following methods is used for the preparation of ether.
Choose an answer
Kolbe's reaction
Frankland reaction
Williamson synthesis
Down's process
Previous
Skip
Next
Question # 35
Phenol can be prepared from chlorobenzene by
Choose an answer
Williamson synthesis
Down's process
Kolbe reaction
Cannizzaro reaction
Previous
Skip
Next
Question # 36
Which raw material is used for preparation of bleaching powder.
Choose an answer
Cl2 and H2O
Cl2 and Lime
Cl2 and HOCl
HCl and Lime
Previous
Skip
Next
Question # 37
Which one of the following species is meta director if present at benzene ring.
Choose an answer
-NO2
-Cl
-CH3
-OH
Previous
Skip
Next
Question # 38
Which substance is used to lower the melting point of NaCl in Down's cell
Choose an answer
CaCO3
CaCl2
MgSO4
AlCl3
Previous
Skip
Next
Question # 39
Which acid is used in the manufacture of synthetic fiber
Choose an answer
Formic acid
Oxalic acid
Carbonic acid
Acetic acid
Previous
Skip
Next
Question # 40
The number of acidic hydrogen present in 1- Propyne is
Choose an answer
1
2
3
4
Previous
Skip
Next
Question # 41
Aromatic compounds burns with sooty flame because.
Choose an answer
They have high percentage of hydrogen
The have a right structure
The have high percentage of carbon
The resist reaction with air
Previous
Skip
Next
Question # 42
Bleaching powder may be produced by passing chlorine over.
Choose an answer
Calcium carbonate
Hydrated calcium sulphate
Anhydrous calcium sulphate
Calcium hydroxide
Previous
Skip
Next
Question # 43
A snake was preserved in a solution and was placed in biology laboratory. The solution is.
Choose an answer
De ionized water
Fehling solution
Formalin
Chloroform
Previous
Skip
Next
Question # 44
Vinyl acetylene combines with HCl to form
Choose an answer
Polyacetylene
Benzene
Chloroprene
Divinyl acetylene
Previous
Skip
Next
Back