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Chemistry General Science Test Medium Mode MCQs With Answers
Question # 1
Hydrocarbons, SO
2
, CO, NH
3
nitrogen oxides and compounds of fluorine are called
Choose an answer
Primary pollutant
Secondary pollutant
Tertiary pollutant
None of these
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Question # 2
Most animals can not digest:
Choose an answer
starch
cellulose
proteins
glucose
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Question # 3
The mechanism of polymerization involves free radical addition polymerization or condensation polymerization. Choose the correct statement
Choose an answer
Polyester is an addition polymer
Polythene is an addition polymer
Polyvinyl chloride (PVC) is a condensation polymer
Polystyrene
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Question # 4
Chemicals used to kill fungi are:
Choose an answer
Herbicides
Insecticides
Pesticides
fungicides
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Question # 5
In all oxidation reactions, atoms of an element in a chemical species lose electrons and increases their
Choose an answer
Oxidation states
Reduction states
Electrode
Negative charges
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Question # 6
Plastic are pollution problem because many plastics
Choose an answer
Are made from petroleum
Are very inflammable
Burn to produce toxic fumes
Decompose to produce toxic product
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Question # 7
Amount of cellulose produced by plants every year is _____ approximately
Choose an answer
100 billion tons
90billion tons
80 billion tons
70 billion tons
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Question # 8
The curve which is obtain from Boyle's law is called as
Choose an answer
Isochoric
Isotherm
Adiabatic
All of these
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Question # 9
2-propanol shows-----isomerism with 1-propanol
Choose an answer
Chain isomerism
Positional isomerism
Metamerism
Geometrical isomerism
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Question # 10
CO2 and SO2 are both triatomic molecules, but heat of vaporization of SO2 is greater than that of CO2. This is due to
Choose an answer
greater electronegative character of sulphur
greater size of SO2 molecule
SO2 is polar and CO2 is non-polar
SO2 is more acidic in nature than CO2
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Question # 11
Enzymes have been classified on the basis of
Choose an answer
protein structure
prosthetic groups
type of reaction they catalyse
bonding in them
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Question # 12
The reactivity order of alkyl halides for a paricular alkyl group is
Choose an answer
Fluoride > chloride > bromide > iodide
Chloride > bromide > fluoride > iodide
Iodide > bromide > chloride > fluoride
Bromide > iodide > chloride > fluoride
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Question # 13
The general formula of alkyl halides is
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C
n
H
2n
X
C
n
H
2n-1
X
C
n
H
2n+1
X
C
n
H
2n-2
X
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Question # 14
In a period, melting points of elements
Choose an answer
Increases
Decreases
Remain constant
First increases then decreases
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Question # 15
The functional group of acid amide is
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Question # 16
A gas bulb is filled with NO
2
gas and immersed in an ice bath at 0
°C which becomes colourless after sometimes. This colourless gas will be
Choose an answer
NO
2
N
2
O
N
2
O
4
N
2
O
5
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Question # 17
Octane number can be changed by
Choose an answer
Isomerisation
Alkylation
Cyclisation
All of these
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Question # 18
A white precipitate
of
silver
chloride
immediately formed on
addition
of :
Choose an answer
Silver nitrate solution to sodium chloride solution.
Silver chloride solution to sodium nitrate solution.
Silver nitrate solution to potassium chloride solution
Silver nitrate solution to hydrogen chloride solution.
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Question # 19
Aluminium oxide is:
Choose an answer
Acidic oxide
Basic oxide
Amphoteric oxided
None of these
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Question # 20
The element with atomic number 55 belongs to which block of the periodic table
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s-block
p-block
d-block
f-block
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Question # 21
The total values of magnetic quantum number of subshell are five, the subshell is
Choose an answer
S-subshell
P-subshell
D-subshell
F-subshell
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Question # 22
Group VIB of transition elements contains
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Zn, Cd, Hg
Fe, Ru, Os
Cr, Mo, W
Mn, Te, Re
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