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Aqua regia is a mixture of concentrated HCl and HNO3 in the ratio:
Which metal is used in the galvanization process?
Which of the following ores is concentrated by Magnetic Separation?
The electronic configuration of a metal 'M' is 2, 8, 2. It belongs to which group?
What is the purpose of adding limestone in the extraction of iron?
Which metal is used for making electric heater coils?
Which of the following is not an alloy of copper?
Which metal is used for making foil to wrap food?
The metal which does not react with boiling water but reacts with steam is:
Which of the following metals is most likely to be found in its native state?
In the extraction of copper from copper pyrites, silica is added to the Bessemer converter to remove:
The reaction 2Al + Fe2O3 → Al2O3 + 2Fe + Heat is an example of:
Calculate the percentage of Iron in pure Magnetite (Fe3O4). (Atomic mass: Fe=56, O=16)
During the electrolytic refining of copper, the anode is made of:
Which of the following has the highest melting point?