No. of questions - 33
Time - 15 min
1.
Which of the following is a carbonate ore?
2.
Blood haemoglobin contains:
3.
Which element is present in pitch blende?
4.
Which is incorrect as the uses of lime stone in industries are concerned?
5.
In alumino-thermite process, aluminium is used as
6.
Which among the following has highest electrical conductivity?
7.
Which of the following mineral does not contain Al?
8.
Forth floatation process for the concentration of the ores is an illustration of the practical application of
9.
Platinum, palladium, indium, etc., are called noble metals because:
10.
Cyanide process is used in the extraction of
11.
Mispickel is the ore of:
12.
In blast furnace, the cup and cone arrangement is used:
13.
Which process is used for the extraction of metals from their sulphide ores?
14.
The method of zone refining of metals is based on the principle of
15.
Which is not a mineral?
16.
Pentalandite is an ore of:
18.
Refractory materials are used for the construction of furnaces because they:
19.
Which metal occurs in free state?
20.
Slag coming out at the bottom of a blast furnace during extraction of iron from its ores, is used in making:
21.
The process in which ore is heated in air below its melting point is known as:
22.
Main ore of aluminium is:
23.
The existence of two or more crystalline forms of the same substance is called:
24.
The matte is impure substance obtained during extraction of:
25.
Which process is used for the purification of Al metal?
26.
Mercury is transported in mental containers made up of:
27.
Iron ores are dressed by:
28.
Stainless steel has iron and
29.
When pyrolusite is fused with KOH in presence of air, the fused mass becomes:
30.
Alloy formation gives rise to:
31.
An essential constituent of amalgam is:
32.
Wolframite ore is separated from tin stone ore by the process of
33.
Which is not a mineral of aluminium?
