Read and download free pdf of CBSE Class 12 Chemistry General Principles and Process of Isolation of Elements Notes and Questions. Get printable school Assignments for Class 12 Chemistry. Class 12 students should practise questions and answers given here for Unit 06 General Principles And Processes Of Isolation Of Elements Chemistry in Class 12 which will help them to strengthen their understanding of all important topics. Students should also download free pdf of Printable Worksheets for Class 12 Chemistry prepared as per the latest books and syllabus issued by NCERT, CBSE, KVS and do problems daily to score better marks in tests and examinations
Assignment for Class 12 Chemistry Unit 06 General Principles And Processes Of Isolation Of Elements
Class 12 Chemistry students should refer to the following printable assignment in Pdf for Unit 06 General Principles And Processes Of Isolation Of Elements in Class 12. This test paper with questions and answers for Class 12 Chemistry will be very useful for exams and help you to score good marks
Unit 06 General Principles And Processes Of Isolation Of Elements Class 12 Chemistry Assignment
2. Minerals, which act as source for metal, are called Ore. From ore metal can be obtained economically .
3. The unwanted impurities present in ore are called Gangue.
4. The entire process of extraction of metal from its ore is called Metallurgy.
5. Removal of gangue from ore is called Concentration, Dressing or Benefaction of ore.
6. Concentration by Hydraulic washing is based on the difference in gravities of ore and gangue particles.
7. Concentration by Magnetic separation is based on differences in magnetic properties of ore components. If either of ore or gangue is capable of attracted by a magnet field, then such separation is carried out.
8. Concentration by Froth Flotation Process is based on the facts that sulphide ore is wetted by oil & gangue particles are wetted by water.
9. Concentration by Leaching is based on the facts that ore is soluble in some suitable reagent & gangue is insoluble in same reagent. e.g. Bauxite ore contains impurities of silica, iron oxide & TiO2 .The powdered ore is treated with NaOH which dissolve Al & impurities remains insoluble in it.
10. Calcination involves heating of ore in absence of air below melting point of metal. In this process volatile impurities escapes leaving behind metal oxide.
ZnCO3 ZnO +CO2
CaCO3.MgCO3 CaO + MgO + 2CO2
11. Roasting involves heating of ore in presence of air below melting point of metal in reverberatory furnace. In this process volatile impurities escapes leaving behind metal oxide and metal sulphide converts to metal oxide.
2 ZnS + 3 O2 2ZnO+2SO2
2PbS + 3 O2 2 PbO +2 SO2
12. Reduction of metal oxide involves heating of metal in presence of suitable reagent Coke or CO2.
13. Reactions taking place at different zones of blast furnace in extraction of iron:-
(i) Zone of reduction:- Temperature range 250oC-700oC
3Fe2O3+CO 2Fe3O4+CO2
Fe3O4+CO 3FeO+ CO2
FeO +CO Fe+ CO2
(ii) Zone of slag formation:- Temperature range 800oC-1000oC
CaO+SiO2 CaSiO3, P4O10+10C 4P+10CO, SiO2+2C Si+2CO, MnO2+2C Mn+2CO
(iii) Zone of fusion: - Temperature range 1150oC-1350oC CO2 + C 2CO
(iv) Zone of fusion: - Temperature range 1450oC-1950oC C +O2 CO2
14. FLOW SHEET FOR EXTRACTION OF IRON:-
16. Cast Iron: - It contains Fe 99.5-99.8%, Carbon 0.1-0.2% Impurities 0.3%.
17. Spongy iron: - Iron formed in the zone of reduction of blast furnace is called spongy iron. It contains impurities of C, Mn , Si, etc.
18. FLOW SHEET FOR EXTRACTION OF COPPER:-
Please click on below link to download pdf file for CBSE Class 12 Chemistry General Principles and Process of Isolation of Elements Notes and Questions
| CBSE Class 12 Chemistry General Organic Chemistry Notes and Questions |
| CBSE Class 12 Chemistry Organic Chemistry Questions |
| CBSE Class 12 Chemistry Solutions Assignment |
| CBSE Class 12 Chemistry Solutions Questions |
| CBSE Class 12 Chemistry Electro Chemistry Assignment |
| CBSE Class 12 Chemistry Electro Chemistry Questions |
| CBSE Class 12 Chemistry Electrochemistry Notes and Questions |
| CBSE Class 12 Chemistry Surface Chemistry Assignment |
| CBSE Class 12 Chemistry Surface Chemistry Notes and Questions |
| CBSE Class 12 Chemistry Surface Chemistry Questions |
| CBSE Class 12 Chemistry Halo Alkanes and Halo arenes Assignment |
| CBSE Class 12 Chemistry Halo Alkanes and Halo arenes Questions |
| CBSE Class 12 Chemistry Alcohols Phenols and Ethers Assignment |
| CBSE Class 12 Chemistry Alcohols Phenols and Ethers Questions |
| CBSE Class 12 Chemistry Aldehydes Ketons Carboxylic Acids Questions |
| CBSE Class 12 Chemistry Biomolecules Assignment |
| CBSE Class 12 Chemistry Biomolecules Notes and Questions |
| CBSE Class 12 Chemistry Biomolecules Questions |
More Study Material
CBSE Class 12 Chemistry Unit 06 General Principles And Processes Of Isolation Of Elements Assignment
We hope you liked the above assignment for Unit 06 General Principles And Processes Of Isolation Of Elements which has been designed as per the latest syllabus for Class 12 Chemistry released by CBSE. Students of Class 12 should download and practice the above Assignments for Class 12 Chemistry regularly. We have provided all types of questions like MCQs, short answer questions, objective questions and long answer questions in the Class 12 Chemistry practice sheet in Pdf. All questions have been designed for Chemistry by looking into the pattern of problems asked in previous year examinations.
Assignment for Chemistry CBSE Class 12 Unit 06 General Principles And Processes Of Isolation Of Elements
Our team of expert teachers have referred to NCERT book for Class 12 Chemistry to design the Chemistry Class 12 Assignments. If you practice at least one test paper daily, you will get higher marks in Class 12 exams this year. Daily practice of Chemistry course notes and related study material will help you to clear all your doubts and have stronger understanding of all concepts. You can download all Revision notes for Class 12 Chemistry also from www.studiestoday.com absolutely free of cost.
Unit 06 General Principles And Processes Of Isolation Of Elements Assignment Chemistry CBSE Class 12
All questions and their answers for the assignment given above for Class 12 Chemistry have been developed as per the latest curriculum and books issued for the current academic year. The students of Class 12 can rest assured that the best teachers have designed the questions of Chemistry so that you are able to revise the entire syllabus if you do the assignments. Lot of MCQ questions for Class 12 Chemistry have also been given in the worksheets and assignments for regular use. All study material for Class 12 Chemistry students have been given on studiestoday.
Unit 06 General Principles And Processes Of Isolation Of Elements Assignment CBSE Class 12 Chemistry
Regular assignment practice helps to get a more comprehensive understanding of Unit 06 General Principles And Processes Of Isolation Of Elements concepts. Assignments play a crucial role in understanding Unit 06 General Principles And Processes Of Isolation Of Elements in CBSE Class 12. Students can download all the assignments of the same chapter in Class 12 Chemistry in Pdf format. You can print them or read them online on your computer or mobile.
CBSE Chemistry Class 12 Unit 06 General Principles And Processes Of Isolation Of Elements Assignment
CBSE Class 12 Chemistry latest books have been used for coming up with the latest questions and solutions for the above assignment. If you have revised all concepts relating to Unit 06 General Principles And Processes Of Isolation Of Elements then you should attempt all questions given in the test sheets above. We have also provided lot of Worksheets for Class 12 Chemistry which you can use to further make your self stronger in Chemistry
You can download free Pdf assignments for CBSE Class 12 Chemistry Unit 06 General Principles And Processes Of Isolation Of Elements from StudiesToday.com
The Unit 06 General Principles And Processes Of Isolation Of Elements Class 12 Chemistry Assignments have been designed based on latest CBSE syllabus for Class 12 Chemistry issued for the current academic year
Yes, These printable assignments for Unit 06 General Principles And Processes Of Isolation Of Elements Class 12 Chemistry are free to download and print
All topics given in Unit 06 General Principles And Processes Of Isolation Of Elements Chemistry Class 12 Book for the current academic year have been covered in the given assignment
No, all Printable Assignments for Unit 06 General Principles And Processes Of Isolation Of Elements Class 12 Chemistry have been given for free and can be downloaded in Pdf format
Just click on the View or Download button below, then another window with the Pdf will be visible, just click on the Pdf icon to download the free assignments for Unit 06 General Principles And Processes Of Isolation Of Elements Class 12 Chemistry
Yes, apart from Chemistry you can download free assignments for all subjects in Class 12
Our team of expert teachers at studiestoday.com have provided all answers for the practice questions which have been given in Class 12 Chemistry Unit 06 General Principles And Processes Of Isolation Of Elements assignments
Solved assignments have been provided on StudiesToday for all chapters in Class 12 Chemistry assignments
Latest syllabus issued for current academic year by CBSE has been used to design assignments for Class 12
Yes, we have provided detailed answers for all questions given in assignments for Class 12 Chemistry
Download free solved assignments for Class 12 Chemistry and practice them daily to get better marks in examinations
Yes, students in Class 12 will be able to understand the concepts by solving Chemistry for Unit 06 General Principles And Processes Of Isolation Of Elements
Yes, we have given practice assignments for all important topics given in Unit 06 General Principles And Processes Of Isolation Of Elements