This test consists of chemistry question paper to help you prepare for the actual AIEEE Chemistry section.
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is passed through an acidified solution of and a black precipitate is formed. This is due to
Reduction of
Oxidation of
Reduction an oxidation
Neither reduction nor oxidation
The equivalent mass of is half its molecular mass when it is converted into
In which of the following compounds, transition metal is in zero oxidation state?
Which of the following processes involves the smelting process?
In the flotation process for the beneficiation of minerals the particles float because
They bear an electrostatic charge
They are insoluble
They are light
Their surface cannot easily be wetted
The following equation depicts a method of purification of Ni by
Cupellation
Zone refining
Van Arkel method
Mond’ method
The incorrect statement is
The Castner Kellner process makes NaOH from NaCl
Siemens open hearth process for making steel from pig iron, scrap steel and haematite
Bessemer process produces steel from pig iron
The Solvay process makes soda from caustic soda, and
Which of the following statement is not true?
Temporary hardness is due to the presence of Ca and Mg bicarbonates
Permanent hardness is due to the presence of soluble Ca and Mg sulphate sand nitrates
Hardness of water depends on its behaviour towards soap
Permanent hardness can be removed by boiling the water
Ice melts at a temperature lower than its usual melting point when the pressure is increased because
Ice is less dense than water
Ice is not a true solid
Chemical bonds break under pressure
Pressure generates heat
Elements of group I give colour in Bunsen burner due to
Low ionization potential
Low melting point
Single electron in the outermost orbit
Softness
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