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From which mineral is radium obtained?
The correct answer is Pitchblende. Marie and Pierre Curie, Polish and French chemists, discovered radium in 1898. The discovery came from the study of pitchblende (a type of uranium ore) found in Bohemia (today's Czech Republic). The uranium was removed from the ore and the remains were found to stiRead more
The correct answer is Pitchblende. Marie and Pierre Curie, Polish and French chemists, discovered radium in 1898. The discovery came from the study of pitchblende (a type of uranium ore) found in Bohemia (today’s Czech Republic). The uranium was removed from the ore and the remains were found to still be radioactive.
See lessWhich of the following are the ingredients of gun metal?
Gun metal, also known as red brass in the United States, is a type of bronze – an alloy of copper, tin, and zinc. Proportions vary but 88% copper, 8–10% tin, and 2–4% zinc is an approximation.
Gun metal, also known as red brass in the United States, is a type of bronze – an alloy of copper, tin, and zinc. Proportions vary but 88% copper, 8–10% tin, and 2–4% zinc is an approximation.
See lessSodium metal is kept under
Sodium metal should be stored under kerosene.
Sodium metal should be stored under kerosene.
See lessWhich of the following was to be discovered first in the chromospheres of the sun?
For the first time, Helium was discovered in the Chromosphere of the sun.
For the first time, Helium was discovered in the Chromosphere of the sun.
See lessMost soluble in water is
When applying energy to the polar sucrose molecules, there is a formation of intermolecular bonds with the polar water molecules. And that intermolecular bonds are very weak and it gives the energy to derange the structure of both pure solvent and the solute. Therefore, sugar is most soluble in wateRead more
When applying energy to the polar sucrose molecules, there is a formation of intermolecular bonds with the polar water molecules. And that intermolecular bonds are very weak and it gives the energy to derange the structure of both pure solvent and the solute. Therefore, sugar is most soluble in water.
See lessThe most important ore of aluminium is
Bauxite is the primary aluminum ore composed of one or more aluminum hydroxide minerals, including gibbsite (Al(OH)3), boehmite (γ-AlO(OH)), diaspore (α-AlO(OH)), and impurities such as quartz (SiO2), hematite (α-Fe2O3), and rutile (TiO2) [5,12,13].
Bauxite is the primary aluminum ore composed of one or more aluminum hydroxide minerals, including gibbsite (Al(OH)3), boehmite (γ-AlO(OH)), diaspore (α-AlO(OH)), and impurities such as quartz (SiO2), hematite (α-Fe2O3), and rutile (TiO2) [5,12,13].
See lessSoda water contains
Soda water is basically a carbonated water which holds water and into this Carbon dioxide gas has been dissolved under the pressure. Basically Carbon dioxide and the water just reacts chemically to yield the Carbonic acid which is actually a weak acid.
Soda water is basically a carbonated water which holds water and into this Carbon dioxide gas has been dissolved under the pressure. Basically Carbon dioxide and the water just reacts chemically to yield the Carbonic acid which is actually a weak acid.
See lessPermanent hardness of water may be removed by the addition of
Sodium carbonate, Na2CO3, is also known as washing soda. It can remove temporary and permanent hardness from water. Sodium carbonate is soluble but calcium carbonate and magnesium carbonate are insoluble.
Sodium carbonate, Na2CO3, is also known as washing soda. It can remove temporary and permanent hardness from water. Sodium carbonate is soluble but calcium carbonate and magnesium carbonate are insoluble.
See lessPotassium nitrate is used in
It is used as a form of fertiliser as it contains all the macronutrients needed for the plants to grow. It is used as gunpowder in explosives such as bombs, grenades, etc. Used in the manufacturing and production of cigarettes.
It is used as a form of fertiliser as it contains all the macronutrients needed for the plants to grow. It is used as gunpowder in explosives such as bombs, grenades, etc. Used in the manufacturing and production of cigarettes.
See lessCarbon, diamond and graphite are together called
The correct answer is Allotrope. Allotropes are generally elements that exist in two or more different forms in the same physical state and they also differ in physical properties and chemical activity.
The correct answer is Allotrope. Allotropes are generally elements that exist in two or more different forms in the same physical state and they also differ in physical properties and chemical activity.
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