Most metals are obtained from minerals. A minerals is obtained by mining and is a naturally occuring substances with a range of chemical compositon.
Which of the following method is based upon realtive melting point of ore and impurty?

Most metals are obtained from minerals. A minerals is obtained by mining and is a naturally occuring substances with a range of chemical compositon. Which of the following metal sulphide is reduced by self reduction?

Most metals are obtained from minerals. A minerals is obtained by mining and is a naturally occuring substances with a range of chemical compositon. Using the Ellingham diagram, estimate the temperature at which MgO can be reduced to metal by carbon:

Which of the following metals can be obtained from haematite ore?

Assertion : Minerals are naturally occurring chemical substances in the earth’s crust obtainable by mining. Reason : Minerals are also known as ores.

Assertion : Minerals are naturally occurring chemical substances in the earth’s crust obtainable by mining. Reason : Minerals are also known as ores.

The main group elements complete their elctron configuration using s and p electrons in the periodic table. These elements range from the most metallic to the most non-metallic , with intermiediate properties of semi-metals, in between . The elements which occur at the two extremes of the periodic table are highly reactive and therefore , these highly reactive elements do not occur in free state, they usually occur in the combined forms. Which of the following properties show opposite trend on moving along a period from left to right and from top to bottom in a group ?