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Quiz 4
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Q.1
Soap is a mixture of sodium or potassium salts of
Dicarboxylic acids
Mono-carboxylic acids
Glycerol
Tricarboxylic acids
Q.2
Glass is made of the mixture of:
Quartz and mica
Sand and silicates
Salt and quartz
Sand and salt
Q.3
The type of glass used in making lenses and prisms is
Jena glass
Soft glass
Pyrex glass
Flint glass
Q.4
Which of the following is a protein?
Natural rubber
Starch
Cellulose
None of these
Q.5
Wood is the main raw material for the manufacture of
Paint
Paper
Ink
Gun powder
Q.6
Who suggested that most of the mass of the atom is located in the nucleus?
Thompson
Bohr
Rutherford
Einstein
Q.7
The dark lines in the solar spectrum are due to
Absorption of corresponding wavelengths by the outer layers of the sun.
Destructive interference between waves of certain definite wavelengths.
Absorption of corresponding wavelengths by the prism used in the photograph.
Absence of corresponding wavelengths from the light emitted by the core of the sun.
Q.8
Which type of fire extinguisher is used for petroleum fire?
Powder type
Liquid type
Soda acid type
Foam type
Q.9
Rayon is chemically a
Cellulose
Pectin
Glucose
Amylase
Q.10
Atoms of an element differ from those of all other elements in
Atomic number and electronic configuration.
Number of neutrons and number of valence electrons.
Atomic number and number of valence electrons.
Number of neutrons and electronic configuration.
Q.11
Which of the following shows the masses of the three elementary particles in decreasing order?
Leptons, Baryons, Mesons
Mesons, Baryons, Leptons
Baryons, Mesons, Leptons
Leptons, Mesons Baryons
Q.12
In an atomic nucleus, neutrons and protons are held together by:
Gravitational forces
Exchange forces
Coulombic forces
Magnetic forces
Q.13
'No two electrons in an atom can have the same set of four quantum numbers' is stated in
Newton's law
Bohr's law
Aufbau principle
Pauli's exclusion principle
Q.14
In an atomic explosion, enormous energy is released which is due to
Conversion of chemical energy into heat energy
Conversion of mechanical energy into nuclear energy
Conversion of mass into energy
Conversion of neutrons into protons
Q.15
Nautical mile is a unit of distance used in:
Navigation
Road mile
Astronomy
Measuring the boundaries of a nation
Q.16
Which of the following is commonly called a 'poly-amide'?
Terylene
Nylon
Rayon
Orlon
Q.17
Optical fibers are mainly used for which of the following?
Musical instruments
Food industry
Weaving
Communication
Q.18
The major ingredient of leather is:
Collagen
Carbohydrate
Polymer
Nucleic acid
Q.19
Nuclear fission is caused by the impact of:
Neutron
Proton
Deuteron
Electron
Q.20
Which of the following rays are the most penetrating?
Beta rays
Alpha rays
Gamma rays
X-rays
Q.21
What is the wavelength of visible spectrum?
8500 - 9800 angstrom
7800 - 8000 angstrom
3900 - 7600 angstrom
1300 - 3000 angstrom
Q.22
According to Avogadro's Hypothesis, the smallest particle of an element or a compound, that can exist independently, is called:
A molecule
A cation
An anion
An atom
Q.23
'Bar' is the unit of
Temperature
Heat
Atmospheric pressure
Current
Q.24
Isotopes are separated by:
Crystallisation
Sublimation
Distillation
Filtration
Q.25
The wavelength of X-rays is of the order of
10 micron
1 angstrom
1 cm
1 m
Q.26
Knot is a unit of speed of which of the following?
Aeroplane
Light waves
Ship
Sound waves
Q.27
Which of the following is used as a moderator in nuclear reactor?
Thorium
Graphite
Radium
Ordinary water
Q.28
Epoxy resins are used as:
Detergents
Insecticides
Adhesives
Moth repellents
Q.29
How many colours the sunlight spectrum has?
Three
Seven
Four
Five
Q.30
Which is/are the important raw material(s) required in cement industry?
Gypsum and Clay
Clay
Limestone and Clay
Limestone
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