Test: Mineral And Power Resources - 1

Solution:

Solution:

India is blessed with plenty of metallic and non-metallic mineral resources. However, they are unevenly distributed due to differences or variations in geological structures, processes and time involved in the formation of minerals. So the minerals are evenly distributed over space.

Solution:

Yes the correct answer is B as all the other properties like colour, hardness,density( weight) are the physical properties they define the physical appearance of the minerals....But presence of sulphides is a chemical property of the minerals as it defines it's chemical composition....

Solution: Ore is a special type of rock that contains a large enough amount of a particular mineral (usually a metal) to make it economically practical to extract that mineral from the surrounding rock. Not all minerals are found in a large enough amount in one location to make it worth it to remove the ore from the rock through a process known as mining. Ores can be mined in a number of ways, including strip mining as shown here at this uranium mine.

Solution:

High-grade ore contains a large concentration of the desired mineral. Low-grade ore has a smaller concentration.

Solution:

Solution:

The largest concentration of monazite sand is on the Kerala coast.

Solution:

Solution:

Metals : Metals are the elements which can easily loose electrons and forms cations.

Properties of metals :

• They are lustrous (shine).
• They are malleable and ductile (flexible).
• They conduct heat and electricity.
• The metallic oxides are basic in nature.
• They form cations in an aqueous solution.

Non-metals : Non-metals are the elements which can easily gain electrons and form an anion.

Properties of non-metals :

• They are non-lustrous.
• They are brittle and hard in nature.
• They do not conduct heat and electricity.
• The non-metallic oxides are acidic in nature.
• They form anions in an aqueous solution.

Hence, from the given options the correct option for metal is, Malleable, shiny, and able to conduct heat or electricity.

Solution: Limestone is not a metallic mineral.