No. of questions - 33
Time - 15 min
The matte is impure substance obtained during extraction of:
Which is not a mineral of aluminium?
Pentalandite is an ore of:
Which element is present in pitch blende?
In alumino-thermite process, aluminium is used as
The existence of two or more crystalline forms of the same substance is called:
Forth floatation process for the concentration of the ores is an illustration of the practical application of
In blast furnace, the cup and cone arrangement is used:
Stainless steel has iron and
Blood haemoglobin contains:
Cyanide process is used in the extraction of
Alloy formation gives rise to:
Which metal occurs in free state?
Platinum, palladium, indium, etc., are called noble metals because:
Mercury is transported in mental containers made up of:
Slag coming out at the bottom of a blast furnace during extraction of iron from its ores, is used in making:
The process in which ore is heated in air below its melting point is known as:
When pyrolusite is fused with KOH in presence of air, the fused mass becomes:
Which process is used for the purification of Al metal?
Which is incorrect as the uses of lime stone in industries are concerned?
The method of zone refining of metals is based on the principle of
Main ore of aluminium is:
Which of the following is a carbonate ore?
Which of the following mineral does not contain Al?
An essential constituent of amalgam is:
Which among the following has highest electrical conductivity?
Which process is used for the extraction of metals from their sulphide ores?
Wolframite ore is separated from tin stone ore by the process of
Iron ores are dressed by:
Refractory materials are used for the construction of furnaces because they:
