Hey there! We receieved your request
Stay Tuned as we are going to contact you within 1 Hour
One of our academic counsellors will contact you within 1 working day.
Click to Chat
1800-5470-145
+91 7353221155
Use Coupon: CART20 and get 20% off on all online Study Material
Complete Your Registration (Step 2 of 2 )
Sit and relax as our customer representative will contact you within 1 business day
OTP to be sent to Change
Occurrence of Metals and Non-Metals
Native Metals
Alloys
Ores
Some Metals and their Corresponding Ores
Frequently Asked Questions (FAQs)
A metal that exists in metallic form, either as pure metal or as an alloy. For example, cadmium, cobalt, bismuth, indium etc.
Two group of metals are found in nature. They are classified on the basis of their nature of existence, that is, whether they exists single or in alloys-
The gold group consists of gold, copper, lead, aluminum, mercury, and silver.
The platinum group consists of platinum, iridium, osmium, palladium, rhodium, and ruthenium.
Aluminum is the most abundant element in nature. It is a major constituent of silica and clay. Iron is the second largest metal that exists in nature after aluminum. The process of extracting metals from ores is known as Smelting which was discovered around 6500 BC.
It is a mixture of two or more elements in which the major component is metal. Alloys are made to obtain desirable characteristics. The basic idea to make alloy is to make metal less brittle, hard and more resistant to corrosion. Alloys of iron is important in both quantity and commercial value. For example, stainless steel, cast iron, alloy steel etc. Iron alloyed with carbon gives low, mid and high carbon steels. Increase in carbon content reduces ductility and toughness. The addition of silicon to iron produces cast irons, whereas the addition of chromium, nickel and molybdenum to carbon steels results in stainless steels.
Brass
Copper and Zinc
Door handles and fittings
Bronze
Copper and Tin
Statues
Solder
Tin and Lead
Soldering metals together
Stainless Steel
Iron, Chromium and nickel
Cutlery, kitchen sinks
The alloys of aluminum, titanium, and magnesium are valued for their high strength-to-weight ratios, and magnesium can also provide electromagnetic shielding. These alloys are used in jet engines.
Ore is a naturally occurring material from which a metal can be extracted. They are extracted from the earth by the process of mining.
Fig. 1. Some Common Ores
The basic extraction of ore deposits follows these steps:
1. Prospecting or exploration- This is the first step in which the extent and value of ore where it is located is defined
2. Conduct resource estimation-This is to estimate the size and grade of the deposit.
3. Conduct a pre-feasibility study -This is done to know about the practicality of the proposed idea.
4. Conduct a feasibility study – This is to evaluate the financial viability, technical and financial risks associated with the project.
5. Development- This step is used for building mine plant and equipment needed.
6. The operation of the mine in an active sense
7. Reclamation is the last step in which land is made suitable for future use.
Fig. 2. Metals and their Method of Extraction
Aluminum
Bauxite: Al2O32H2O
Corundum: Al2O3
Iron
Hematite: Fe2O3
Magnetite: Fe3O4
Copper
Copper Pyrite: CuFeS2
Copper Glance: Cu2S
Zinc
Zinc Blende: ZnS
Calamine: ZnCo3
Sodium
Rock Salt: NaCl
Sodium Carbonate: Na2CO3
Potassium
Karnalite: KClMgCl6H2O
Salt Petre: KNO3
Tin (Sn)
Tin Pyrites: Cu2FeSnS4
Classiterite: SnO2
Q1. Which metal is found in free state in nature?
Sol. Only gold, silver, copper, and the platinum metals occur in nature in larger amounts. They are less reactive in nature, so occur free. Amongst the alloys found in native state are brass, bronze, pewter, German silver, etc.
Q2. Is metal natural?
Sol. Metal exists naturally but not in pure form.
Watch this Video for more reference
More Readings
Occurrence of Metals
Get your questions answered by the expert for free
You will get reply from our expert in sometime.
We will notify you when Our expert answers your question. To View your Question
Refining or Purification of Metals Table of...
Extraction of Copper and Aluminium Table of...
Extraction of Crude Metal from Concentrated Ore...
Methods of Extraction Table of Content...
Oxidation Reduction Table of Content Oxidation and...
Extraction of Iron Table of Content Ores of Iron...
Concentration or Dressing of Ores Table of Content...
Thermodynamic Principles of Metallurgy Table of...