difference between calcination and roasting

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Preksha Razdan answered this

CALCINATION ~ it is the process in which carbonate ore is heated strongly in the absence of air to convert it into metal oxide.

ROASTING ~ it is the process in which sulphide ore is strongly heated in the presence of air to convert it into metal oxide .

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Shubhangi Sharma answered this

CALCINATION- 1. In calcination, the metal ores are heated in limited air. 2. This process helps in the extraction of metals from carbonate ores. ROASTING- 1. In roasting, the metal ores are heated in the presence of excess air. 2. This process helps in the extraction of metals from sulphide ores.

Kumar Utkarsh answered this

Roasting: It is used to convert sulphide ores into oxides. Roasting involves strong heating of iron ore in the presence of excess air. For example, copper sulphide in copper glance ore is converted into copper (I) oxide by heating it in the presence of oxygen.

Calcination: It is used to convert carbonate ores into oxides. Calcination involves strong heating of the ore in the absence of air. For example, calamine ore, which is chemically zinc carbonate, is converted into zinc oxide by heating it in the absence of air.

Albi Ninan answered this

Roasting:It is used to convert sulphide ores into oxides. Roasting involves strong heating of iron ore in thepresenceof excess air. For example, copper sulphide in copper glance ore is converted into copper (I) oxide by heating it in the presence of oxygen.

Calcination:It is used to convert carbonate ores into oxides. Calcination involves strong heating of the ore in theabsenceof air. For example, calamine ore, which is chemically zinc carbonate, is converted into zinc oxide by heating it in the absence of air.

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Meenakshi Pavithran answered this

1) Roasting is the process of convering sulphide ores into oxides.

1)Calcination is the process of converting carbonate ores into oxides.

2) roasting is done by heating in the prescence of excess air

2)calcination is done by heating in the presence of limited air.

3)eg for roasting- copper sulphide in copper glance ores is converted into copper oxide by heating in the presence of oxygen

3)eg for calcination-calamine ore is converted into zinc oxide by heating in the absence of air.

Sushree Simran answered this

Gulam Jilani answered this

Calcination→Calcination is the process of converting hydroxide and carbonate ores to oxides by heating the ores either in absence or in a limited supply of air at a temperature below it melting point of the metal. This process causes the escaping of volatile matter leaving behind the metal oxideRoasting→the process of heating concentrated ore below it's melting point in excess of air this is called roasting

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Siddeshu answered this

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Aastha Singh answered this

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Bhargab Medhi answered this

Heating the ore in absence of air is called calcination. Heating the ore in presence of air is called roasting.

Priyanshu Jaiswal answered this

Roasting: It is used to convert sulphide ores into oxides. Roasting involves strong heating of iron ore in the presence of excess air. For example, copper sulphide in copper glance ore is converted into copper (I) oxide by heating it in the presence of oxygen.

Calcination: It is used to convert carbonate ores into oxides. Calcination involves strong heating of the ore in the absence of air. For example, calamine ore, which is chemically zinc carbonate, is converted into zinc oxide by heating it in the absence of air.

Priyanshu Jaiswal answered this

CALCINATION ~ it is the process in which carbonate ore is heated strongly in the absence of air to convert it into metal oxide.

ROASTING ~ it is the process in which sulphide ore is strongly heated in the presence of air to convert it into metal oxide .

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Prassana Koirala answered this

Roasting Calcination Heating in the presence of air Heating in the absence of air Sulphide ores are roasted Carbonate ores are calcined Sulphur dioxide is released

Carbon dioxide is released

Not used for dehydrating an ore Can be used to drive out moisture from an ore Roasting Calcination Heating in the presence of air Heating in the absence of air Sulphide ores are roasted Carbonate ores are calcined Sulphur dioxide is released

Carbon dioxide is released

Not used for dehydrating an ore Can be used to drive out moisture from an ore

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Rishi Kumaresan answered this

Roasting is a pyrochemical process in which the ore is heated in the presence of oxygen or air is below its melting point. ... roasting is done in reverberatory furnace. Ex:-2ZnS+3O2 ----> 2ZnO+SO2. Calcinationis also a pyrochemical process in which ore is heated in the absence of air.the is decomposed in this process.

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Shivansh answered this

Alloys are used in electrical heating devices because they have high resistivity and they donot burn at high temperature. This shows that alloys have high melting point.

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Ravi Upadhyay answered this

Zn(S)+HCl(AQ)>

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Sangita Tripathi answered this

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Champ Jee answered this

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Tejas Mehta answered this

1) Roasting is a process done for sulphide ores
2) It occurs when metal is heated in presence of oxygen

1)Calcination is a process done for carbonate ores
2) It occurs when heating is done in absence of oxygen

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Ayush answered this

Calcium and Iodine

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Spirited Sana answered this

Oxides Which React With Both Acids And Bases To Form Salt And Water Are Called Amphoteric Oxides. Aluminium Oxide And Zinc Oxide 😁

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Naved Khan answered this

The major differences between calcination and roasting are -

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Nausheen answered this

No because lemon pickel contain acid and aluminium is a metal , when metal reacts with acid then salt and hydrogen gas are formed which spoil it

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Aditya Anil Panvalkar answered this

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Avani Upadhyay answered this

Roasting - in this process sulphide ore is strongly heated in the presence of air so we can convert it into metal oxide. Calcination - in this process carbonate ore is strongly heated in the absence of air so we can convert it to metal oxide.

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Anshul answered this

Roasting- The sulphide ores are converted into oxides by heated strongly in the excess air is called roasting., calcination- the carbonate ores are converted into oxides by heated strongly in the limited air is called calcination.

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Rohit Yadav answered this

When sulphide ore are converted into oxide by heating strongly in the precence of excess air. This process is known as roasting
Example of roasting
2ZnS+ 3o2 ------ 2Zno + 2SO2
The carbonate ores are changed into oxide by heating strongly in limited air. This process is known as calcination

Calcinaton example reaction

Znco3 ------ ZnO+ co2

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Avisek answered this

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Sarthak Rath answered this

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Avinash Kumar answered this

Roasting: it is the process in which sulphide ore is strongly heated in the presence of air to convert it into metal oxide. 2ZnS + 3O2 ➡ 2ZnO + 2So2⬆ Calcination: it is the process in which carbonate ore is strongly heated in the absence of air to convert it into metal oxide. ZnCo3 ➡ ZnO + Co2 ⬆

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Sammy Das answered this

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Aanchal Chaudhary answered this

roasting is heating of sulphide ore but calcination is heating of carbonate ore

Aadarsh Kumar answered this

Calcination-The strong heating of concentrated ores in the limited amount of air.It is mainly used fir carbonate ores and sometimes oxides ore also hametite.It gives carbondioxide gas

Rosting-The strong heating of concentrated ores in the prence of sufficient air. It is used for sulphide ores.It gives SO2gas

Hamsa answered this

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Manpreet Kaur answered this

In calination the ore is heated in the absence of air and in roasting the ore is heated in presence of air

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Poorwa Mittal answered this

Calcination is the process of heating carbonate ore to convert it into its oxide in absence of air

Where as

Roasting is the process of heating sulphide ore to convert it into its oxide in presence of huge air below its melting point .

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Krishna_amal (sachin) answered this

Roasting?is the process in which the ore is heated below its melting point in presence of air to oxidise the impurities. ...?Calcination?is the process of heating the ore below its melting point an absence of air to remove volatile impurities like arsenic etc.

Ajay Pratap Singh answered this

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Akshat Bundela answered this

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Niketa Singh answered this

Calcination us a process of conversion of carbonate ores in oxide in absence of air whereas roasting is a process of conversion of sulphide ores into oxide in presence of air

Samarjeet Singh answered this

Calcination-: 1.)It is done for carbonate ore. 2.)Heating of carbonate ores in absence of oxygen. 3.)con gas is released and metal oxide is obtained.

Roasting-:1.)It is done for sulphide ores.
2.)Heating of sulphide ores in presence of oxygen. 3.)So2 gas is released and metal oxide is obtained

Abhishak Ponnambalam answered this

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Komalpreet Kaur answered this

A carbonate ore are converted into oxides by heating strongly in limited air .this process is called calcination

The sulphide ores are converted into oxides by heating strongly in the presence of excess air .this process is called roasting

👑iñbä 👑 answered this

Roasting?is the process in which the ore is heated below its melting point in presence of air to oxidise the impurities.

?Calcination?is the process of heating the ore below its melting point an absence of air to remove volatile impurities like arsenic etc.

Monisha Badlani answered this

Roasting means heating in presence of excessive supply of oxygen
Calcination means heating in presence of limited supply of oxygen .

Areon Banerjee answered this

Calcination is done in absence of air(O2).
It is used for separation of metal carbonates to convert to metal oxide and carbon dioxide.

Roasting is done in presence of air(O2).
It is used for sulphide ores mostly to replace the sulphur with O2

Pinku Yadav answered this

Roasting
It is occur the presence of oxygen
It is done for sulphide ore
When rusting occur generally so2
gas produced

Calcination
It is occur in absence of oxygen
It is done for carbonate ore
When calcination occurs generally CO2 gas produced

Pcharishma answered this

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Sourav Khilari answered this

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A.srinidhi answered this

ROASTING:it is used to convert sulphide ores into oxides.

CALINATION:it is used to convert carbonate ores into oxides.

Vanshika answered this

in roasting the origin heated in excess of air while in calcination the ore is heated in absence of air

Rohan answered this

calcination occur in the absence of Oxygen and roasting occur in the presence of oxygen

Naveen Singh answered this

Calcination is the precess of heating carbonate ore in the absence of oxygen to convert into oxide ore while,
Roasting is the precess of heating sulphide ore in the presence of oxygen to convert into oxide ore.
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Akanksha Badal answered this

Calcination?is the process of heating the ore below its melting point in absence of air to remove volatile impurities like arsenic etc.?Roasting?is the process in which the ore is heated below its melting point in presence of air to oxidise the impurities.

Akanksha Badal answered this

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Saniya Sherwani answered this

Different between calcination and roasting. Calcination is the process of heating the ore below it's melting point in absence of air to remove volatile impurities like arsenic etc. Roasting is the process in which the ore is heated below it's melting point in presence of air to oxidise the impurities.....

Vaishnavi answered this

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Kuldeep Singh answered this

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Satkritswar Maharana answered this

1) In roasting ore is heated in excess of air and in calcination ore is heated in the absence or limited supply of air

2) Roasting is used for sulphide ore and calcination is used for carbonate ores

Bipul Kumar Yadav answered this

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Nikita Godwal answered this

Calcination is the process of heating carbonates in absence of air and roasting is the process of heating sulphides in the presence big air

Manshurip Raj Mahi answered this

Ans...(1)Calcination:-the process of refining of metal in the presence of oxygen is known as calcination..
(2)Roasting:-the process of refining of metal in the absence of oxygen is known as Roasting........
(3) calcination process is used for sulphide ores and well as carbonate ores...
(4) Roasting process is used for only sulphide ores...

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Sumit Silodiya answered this

Roasting?involves heating of ore lower than its melting point?in the?presence of air or oxygen.?Calcination?involves thermal decomposition of carbonate ores.?Roasting is?carried out mostly for sulfide minerals. During?calcination, moisture?is?driven out from an ore.

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Aniket Kumar answered this

Calcination is the process in which carbonates ore are strongly heated in the absence of oxygen to get metal oxide. But in roasting sulphide ore is strongly heated in presence of oxygen to get metal oxide

Akriti Singh answered this

Calcination is the process of heating the ore below its melting point in absence of air to remove volatile impurities like arsenic etc.
Roasting is the process in which the ore is heated below its melting point in presence of air to oxidise the impurities. Ex.carbon,sulphur etc removed as their gaseous oxides.

Anup Kumar Dutta answered this

Roasting?involves heating of ore lower than its melting point?in the?presence of air or oxygen.?Calcination?involves thermal decomposition of carbonate ores.?Roasting?is carried out mostly for sulfide minerals. During?calcination, moisture is driven out from an ore.

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Prince answered this

Calcination is used for carbonate Ores and roasting is used for sulphide Ores. Calcination is a process which occurred in absence of Oxygen and roasting is a process which occurred in presence of oxygen.

Vaibhav Mogha answered this

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