Question

(a) What is the difference between a mineral and an ore?
(b) Which metal is extracted from cinnabar ore?
(c) Name one ore of sodium. Name the sodium compound present in this ore and write its chemical formula.
(d) How is sodium metal extracted? Explain with the help of equation of the reaction involved.
(e) Name three other metals which are extracted in a manner similar to sodium.

Answer 1

Answer:

Explanation:

                   ANSWERE {A}    

Ore :

Materials which contains sufficient quantity of minerals so that metals can be extracted profitably.

Ore contains a good percentage of metal.

There are no objectionable impurities.

All ores are minerals.

Example : Zinc blende is an ore of zinc.

Minerals :

Minerals are natural materials in which the metals or their compounds are found in earth.

Some minerals may contain a large percentage of metal whereas others may contain only a small percentage of metals.

Some minerals may not contain any objectionable impurities whereas others may contain objectionable impurities.

All minerals are not all minerals are not ores.

Example: Gypsum is a mineral from which calcium is extracted.

ANSWERE  {b}

MERCURY

The metal which is extracted from cinnabar ore is mercury (Hg)

ANSWERE {c}

1. The ore of sodium is rock salt
2. the sodium compound present in ore is NaCl
3. the chemical formula of ore is NaCl

ANSWERE   {d}

sodium is highly reactive metal so it is extracted by eletroytic refining of its metal salt

Na+ + e- = na

cl = cl- + e-

ANSWERE  {e}

POTASSIUM, CALCIUM, AND ALLUMINIUM  are extracted in a manner similar to sodium.

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