Multiple Choice QUESTIONS IN CHEMISTRY 1000+ MCQs FOR ALL COMPETITIVE EXAMS
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Chemistry Multiple Choice
Institution
Chemistry Multiple Choice
Multiple Choice QUESTIONS IN
CHEMISTRY
1000+ MCQs FOR ALL COMPETITIVE EXAMS
Compiled by:
The soul of chemistry is dealing with ?
Internal structural changes in matter
Composition of matter
Properties of matter
Composition and properties of matter
The radioactive iso...
Multiple Choice
QUESTIONS IN
CHEMISTRY
1000+ MCQs FOR ALL
COMPETITIVE EXAMS
Compiled by:
, 1
MCQs in Chemistry
The soul of chemistry is Ice
dealing with ? B. Diamond
C. Sucrose
A. Internal structural changes in matter D. Plastic
B. Composition of matter
C. Properties of matter Covalent network
D. Composition and properties of matter crystals have ?
The radioactive isotope of hydrogen A. higher melting point then molecular
is called ? crystals
B. lower melting point then molecular crystals
A. tritium C. discrete molecules linked by Van der
B. deuterium waals forces
C. protium D. hydrogen bonding
D. ortho-hydrogen
What is a mixture of Potassium Nitrate
Electron was discovered by? Powdered Charcoal and Sulphur called?
A. Michael Faraday A. Paint
B. James Maxwell B. Glass
C. Yuri Gagarin C. Gun Powder
D. J.J Thomson D. Cement
Sodium carbonate is Diameter of an atom is in the
produced by ? order of ?
A. haber process A. 0.2m
B. Amonia solvay process B. 0.2mm
C. decons process C. 0.2nm
D. lead chamber process D. 0.2pm
Which of the following is a substance? Mass spectrometer is used to determine
Mass number of isotopes and ?
A. Sea water
B. Brass A. Atomic number
C. Tape water B. Relative abundance
D. Graphite C. Electronic configuration
E. Sand D. All of the above
Read More Details about this Mcq The number of peaks obtained in mass
spectrometry shows ?
Some substances are good conductor of
electricity in both the solid and liquid states. A. Relative abundance
These substances are B. Average mass of element
generally ? C. Number of isotopes
D. Relative isotopic mass
A. ionic substances
B. metallic substances Empirical formula of
C. molecular solids chloroform is ?
D. covalent network solids
A. CH2 C12
All of the following substances are B. CH3C1
crystalline except ? C. CC14
A. D. CHCL3
Read More Details about this Mcq
, 2
MCQs in Chemistry
Molecular mass of water A.
(18g) means ?
A. 1-mole molecules of water
B. 1-gram molecule of water
C. 3-gram atoms
D. all
Which of the following statements about
isotopes is correct ?
A. Isotopes with odd atomic number are
abundant
B. Isotopes with odd atomic number and
even mass number are abundant
C. Isotopes with even atomic number and
even mass number are abundant
D. Isotopes with even atomic number and
odd mass no are abundant
One mole of CO2 contains?
A. 6.022 x 1023 atoms of oxygen
B. 22-gram electrons
C. 6.022 x 1023 atms of carbon
D. both B. & C.
The number of isotopes of elements with
even mass number and even atomic number
are
?
A. 280
B. 300
C. 154
D. 54
Which of the following terms is not used for
ionic compound ?
A. formula unit
B. empirical formula
C. molecular formula
D. formula mass
moles of each aluminium and oxygen react
with each other to produce aluminium oxide.
The amount of product formed
is ?
A. 0.18 mole
B. 0.27 mole
C. 0.24 mole
D. 0.09 mole
Which one of the following has the maximum
number of isotopes ?
, 3
MCQs in Chemistry
oxygen
B. carbon Isotopes of the same
C. tin elements has ?
D. chlorine
The volume occupied by 2.8 g of
N2 at STP ?
A. 2.24 dm3
B. 22.4 dm3
C. 1.12 dm3
D. 112 dm3
The number of moles of CO2 which
contains 16 g of oxygen is ?
A. 0.25
B. 0.5
C. 0.75
D. 1
How many isotopes have odd atomic number
?
A. 154
B. 280
C. 86
D. 300
Percentage of calcium in calcium
carbonate is ?
A. 80%
B. 30%
C. 40%
D. 20%
Mostly elements have fractional atomic
masses because of ?
A. mass of an atom itself is in fraction
B. atomic masses are average masses of
isobars
C. atmoic masses are average masses of
isotopes proportional to their relative
abundance
D. atmoic masses are average masses of
isotopes
Which of the following is not a
macromolecule
?
A. sand
B. haemoglobin
C. diamond
D. maltose
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