Potassium nitrate is used in
Potassium nitrate is used in
One Joule is equal to
One Joule is equal to
Atoms are composed of:
Atoms are composed of:
From which mineral is radium obtained?
From which mineral is radium obtained?
The variety of coal in which the deposit contains recognizable traces of the original plant material is
The variety of coal in which the deposit contains recognizable traces of the original plant material is
In an atomic nucleus, neutrons and protons are held together by:
In an atomic nucleus, neutrons and protons are held together by:
The element common to all acids is
The element common to all acids is
Electric current is measure by:
Electric current is measure by:
The filament of an electric bulb is made of
The filament of an electric bulb is made of
Nautical mile is a unit of distance used in:
Nautical mile is a unit of distance used in:
In which of the following activities silicon carbide is used?
In which of the following activities silicon carbide is used?
Potassium Permanganate is used for purifying drinking water, because
Potassium Permanganate is used for purifying drinking water, because
The group of metals Fe, Co, Ni may best called as:
The group of metals Fe, Co, Ni may best called as:
Galvanised iron sheets have a coating of
Galvanised iron sheets have a coating of
Which among the following is a positively charged particle emitted by a radioactive element?
Which among the following is a positively charged particle emitted by a radioactive element?
The main constituents of pearls are
The main constituents of pearls are
Balloons are filled with
Balloons are filled with
The chemical (Ethyl Mercaptan) added to the otherwise odourless LPG cooking gas for imparting a detectable smell to the gas is a compound of:
The chemical (Ethyl Mercaptan) added to the otherwise odourless LPG cooking gas for imparting a detectable smell to the gas is a compound of:
Which of the following has a least penetrating power?
Which of the following has a least penetrating power?
The gas usually filled in the electric bulb is
The gas usually filled in the electric bulb is
Washing soda is the common name for
Washing soda is the common name for
Amalgams are:
Amalgams are:
Mesons are found in
Mesons are found in
Chemical formula for water is
Chemical formula for water is
Kilowatt is a unit to measure:
Kilowatt is a unit to measure:
Diamond is an allotropic form of:
Diamond is an allotropic form of:
The age of most ancient geological formations is estimated by
The age of most ancient geological formations is estimated by
Which of the following is in liquid form at room temperature?
Which of the following is in liquid form at room temperature?
'Bar' is the unit of
'Bar' is the unit of
Permanent hardness of water may be removed by the addition of:
Permanent hardness of water may be removed by the addition of:
'No two electrons in an atom can have the same set of four quantum numbers' is
'No two electrons in an atom can have the same set of four quantum numbers' is
What is the wavelength of visible spectrum?
What is the wavelength of visible spectrum?
Which of the following is an element?
Which of the following is an element?
Reading of a barometer going down is an indication of
Reading of a barometer going down is an indication of
Light year is a measurement of
Light year is a measurement of
Which of the following metals remain in liquid for under normal conditions?
Which of the following metals remain in liquid for under normal conditions?
Isotopes are separated by:
Isotopes are separated by:
Decibel is the unit for
Decibel is the unit for
Bell metal is an alloy of
Bell metal is an alloy of
The most important ore of aluminum is
The most important ore of aluminum is
Marsh gas is
Marsh gas is
Knot is a unit of speed of which of the following?
Knot is a unit of speed of which of the following?
Which radioactive pollutant has recently drawn to public, due to its occurrence in the building material?
Which radioactive pollutant has recently drawn to public, due to its occurrence in the building material?
Quartz crystals normally used in quartz clocks etc. is chemically
Quartz crystals normally used in quartz clocks etc. is chemically
Air is a/an:
Air is a/an:
Soda water contains
Soda water contains
What is the unit for measuring the amplitude of a sound?
What is the unit for measuring the amplitude of a sound?
According to Avogadro's Hypothesis, the smallest particle of an element or a compound, that can exist independently, is called:
According to Avogadro's Hypothesis, the smallest particle of an element or a compound, that can exist independently, is called:
Actinides are the elements with atomic numbers from
Actinides are the elements with atomic numbers from
Which of the following shows the masses of the three elementary particles in decreasing order?
Which of the following shows the masses of the three elementary particles in decreasing order?
LPG consists of mainly:
LPG consists of mainly:
The hardest substance available on earth is
The hardest substance available on earth is
When an iron nail gets rusted, iron oxide is formed
When an iron nail gets rusted, iron oxide is formed
The gases used in different types of welding would include
The gases used in different types of welding would include
The average salinity of sea water is
The average salinity of sea water is
Tetraethyl lead is used as
Tetraethyl lead is used as
Kilohertz is a unit which measures
Kilohertz is a unit which measures
Which of the following is the lightest metal?
Which of the following is the lightest metal?
Most soluble in water is:
Most soluble in water is:
Which of the following does not contain a coinage metal?
Which of the following does not contain a coinage metal?
The tree sends down roots from its branches to the soil is know as:
The tree sends down roots from its branches to the soil is know as:
Which of the gas is not known as green house gas?
Which of the gas is not known as green house gas?
Which metal pollute the air of a big city?
Which metal pollute the air of a big city?
A chronometer measures:
A chronometer measures:
In an atomic explosion, enormous energy is released which is due to
In an atomic explosion, enormous energy is released which is due to
One kilometer is equal to how many miles?
One kilometer is equal to how many miles?
Production of chlorofluorocarbons (CFC) gas which is proposed to be banned in India, is used in which of the following domestic products?
Production of chlorofluorocarbons (CFC) gas which is proposed to be banned in India, is used in which of the following domestic products?
The two elements that are frequently used for making transistors are:
The two elements that are frequently used for making transistors are:
Which of the following is a non metal that remains liquid at room temperature?
Which of the following is a non metal that remains liquid at room temperature?
Which of the following is used as a lubricant?
Which of the following is used as a lubricant?
The isotope of uranium capable of sustaining chain reaction is
The isotope of uranium capable of sustaining chain reaction is
Which of the following are the ingredients of gun metal?
Which of the following are the ingredients of gun metal?
Chlorophyll is a naturally occurring chelate compound in which central metal is
Chlorophyll is a naturally occurring chelate compound in which central metal is
One horse power is equal to
One horse power is equal to
Non stick cooking utensils are coated with
Non stick cooking utensils are coated with
Which of the following was to be discovered first in the chromospheres of the sun?
Which of the following was to be discovered first in the chromospheres of the sun?
Permanent hardness of water can be removed by adding:
Permanent hardness of water can be removed by adding:
Which of the following is not an isotope of hydrogen?
Which of the following is not an isotope of hydrogen?
One fathom is equal to
One fathom is equal to
Monazite is an ore of
Monazite is an ore of
The wavelength of X-rays is of the order of
The wavelength of X-rays is of the order of
Which of the following is used in pencils?
Which of the following is used in pencils?
Which of the following is used as a moderator in nuclear reactor?
Which of the following is used as a moderator in nuclear reactor?
Among the various allotrope of carbon
Among the various allotrope of carbon
Bromine is a
Bromine is a
In fireworks, the green flame is produced because of
In fireworks, the green flame is produced because of
Heavy water is:
Heavy water is:
Sodium metal is kept under:
Sodium metal is kept under:
Brass gets discoloured in air because of the presence of which of the following gases in air?
Brass gets discoloured in air because of the presence of which of the following gases in air?
What is laughing gas?
What is laughing gas?
Carbon, diamond and graphite are together called:
Carbon, diamond and graphite are together called:
Who suggested that most of the mass of the atom is located in the nucleus?
Who suggested that most of the mass of the atom is located in the nucleus?
The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is
The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is
The property of a substance to absorb moisture from the air on exposure is called
The property of a substance to absorb moisture from the air on exposure is called
Electric bulb filament is made of
Electric bulb filament is made of
Very small time intervals are accurately measure by
Very small time intervals are accurately measure by
Which of the following metals forms an amalgam with other metals?
Which of the following metals forms an amalgam with other metals?
The dark lines in the solar spectrum are due to
The dark lines in the solar spectrum are due to
Fathom is the unit of
Fathom is the unit of
Water is a good solvent of ionic salts because:
Water is a good solvent of ionic salts because:
