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From which mineral is radium obtained?
Pitchblende is a Uranium rich radioactive mineral used as a fuel in nuclear power stations. It contains radium and is largely made up of Uranium dioxide (UO2). Due to radioactive decay, it also contains some traces of Lead, Thorium, and other rare earth elements.
Pitchblende is a Uranium rich radioactive mineral used as a fuel in nuclear power stations. It contains radium and is largely made up of Uranium dioxide (UO2). Due to radioactive decay, it also contains some traces of Lead, Thorium, and other rare earth elements.
See lessWhich of the following was to be discovered first in the chromospheres of the sun?
Helium was to be discovered first in the chromosphere of the sun.
Helium was to be discovered first in the chromosphere of the sun.
See lessCarbon, diamond and graphite are together called
Both diamond and graphite are made entirely out of carbon, as is the more recently discovered buckminsterfullerene (a discrete soccer-ball-shaped molecule containing carbon 60 atoms). The way the carbon atoms are arranged in space, however, is different for the three materials, making them allotropeRead more
Both diamond and graphite are made entirely out of carbon, as is the more recently discovered buckminsterfullerene (a discrete soccer-ball-shaped molecule containing carbon 60 atoms). The way the carbon atoms are arranged in space, however, is different for the three materials, making them allotropes of carbon
See lessThe element common to all acids is
The element common to all acids is Hydrogen.
The element common to all acids is Hydrogen.
See lessThe 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 sulphur.
The chemical (ethyl mercaptan) added to the otherwise odourless LPG cooking gas for imparting a detectable smell to the gas is a compound of sulphur.
See lessHeavy water is
Heavy Water (D2O) or deuterium oxide is made up of two atoms of deuterium and one atom of oxygen. Deuterium is a stable isotope of hydrogen with double the mass of hydrogen due to presence of an extra neutron in its nucleus. Deuterium is present in hydrogen and hydrogen bearing compounds like water,Read more
Heavy Water (D2O) or deuterium oxide is made up of two atoms of deuterium and one atom of oxygen. Deuterium is a stable isotope of hydrogen with double the mass of hydrogen due to presence of an extra neutron in its nucleus. Deuterium is present in hydrogen and hydrogen bearing compounds like water, hydrocarbons, etc.
See lessGalvanised iron sheets have a coating of
Galvanizing is a process in which Iron or Steel is coated with thin layer of Zinc(Zn) to protect them from corrosion.
Galvanizing is a process in which Iron or Steel is coated with thin layer of Zinc(Zn) to protect them from corrosion.
See lessThe average salinity of sea water is
The concentration of salt in seawater (its salinity) is about 35 parts per thousand; in other words, about 3.5% of the weight of seawater comes from the dissolved salts. In a cubic mile of seawater, the weight of the salt (as sodium chloride) would be about 120 million tons.
The concentration of salt in seawater (its salinity) is about 35 parts per thousand; in other words, about 3.5% of the weight of seawater comes from the dissolved salts. In a cubic mile of seawater, the weight of the salt (as sodium chloride) would be about 120 million tons.
See lessThe property of a substance to absorb moisture from the air on exposure is called
The property of a substance absorbing moisture from the air is said to be deliquescence.
The property of a substance absorbing moisture from the air is said to be deliquescence.
See lessThe inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is
Helium is substituted for nitrogen in the air used by deep sea divers for breathing because Helium is sparingly less soluble in blood, unlike Nitrogen which is more soluble in blood.
Helium is substituted for nitrogen in the air used by deep sea divers for breathing because Helium is sparingly less soluble in blood, unlike Nitrogen which is more soluble in blood.
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