Q22.19P - Chemistry: Molecular Nature Of Matter And Change

Question

Define: (a) ore; (b) mineral; (c) gangue; (d) brine.

Step-by-Step Solution

Answer

1. Ore: It is a natural occurrence of rock in which minerals are present with economically significant elements, typically metals, which can be extracted from the deposit.
2. Mineral: It is defined as naturally occurring homogeneous, crystalline inorganic solid, with a well-defined composition. It contains elements.
3. Gangue: It is the part of the ore without any commercial value. Gangue is nothing but sand, rock, and clay.
4. Brine: It is a water solution which contains high-concentration of salt. It is naturally found on earth's surface, crust, and ocean bottoms.

Step 1: Metallurgy

The properties of metals and their commercial extraction is discussed in detail in a branch of science called metallurgy.

Step 2: (a) Ore

Ore: The natural occurrence of rock in which minerals with economically significant elements, usually metals, are present and can be extracted from the deposit.

Step 3: (b) Mineral

Minerals are naturally occurring homogeneous, crystalline inorganic solids with well-defined compositions. It has elements in it.

Step 4: (c) Gangue

Gangue: This is the ore that has no commercial value. Gangue is made up entirely of sand, rock, and clay. Gangue can be considered as impurity.

Step 5: (d) Brine

Brine is a water solution containing a high concentration of salt. It can be found on the earth's surface, crust, and ocean bottoms.