CBSE Class 12 Chemistry General Principles Process of Isolation of Elements Assignment

Read and download free pdf of CBSE Class 12 Chemistry General Principles Process of Isolation of Elements Assignment. 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

 

 
CBSE Class 12 Chemistry General Principles Process of Isolation of Elements Assignment
 
CBSE Class 12 Chemistry - General Principles _ Process of Isolation of Elements Assignment
CBSE Class 12 Chemistry - General Principles _ Process of Isolation of Elements Assignment
CBSE Class 12 Chemistry - General Principles _ Process of Isolation of Elements Assignment
Important Questions for NCERT Class 12 Chemistry General Principles Process of Isolation of Elements
 

Question. The process does not involve a catalyst is :
(a) Haber process
(b) Contact process
(c) Thermite process
(d) Ostwald process

Answer    C

Question. Which one is malachite from the following?
(a) CuCO3.Cu(OH)2
(b) CuFeS2
(c) Cu(OH)2
(d) Fe3O

Answer    A

Question. Identify the incorrect statement.
(a) The scientific and technological process used for isolation of the metal from its ore is known as metallurgy.
(b) Minerals are naturally occurring chemical substances in the earth’s crust.
(c) Ores are minerals that may contain a metal.
(d) Gangue is an ore contaminated with undesired materials.

Answer   D

Question. Chief ore of Al is :
(a) cryolite
(b) bauxite
(c) feldspar
(d) kaolin

Answer   B

Question. “Metals are usually not found as nitrates in their ores.” Out of the following two (I and II) reasons which is/are true for the above observation?
I. Metal nitrates are highly unstable.
II. Metal nitrates are highly soluble in water.
(a) I is false but II is true.
(b) I is true but II is false.
(c) I and II are true.
(d) I and II are false 

Answer    A

Question. Which one of the following is a mineral of iron?
(a) Malachite
(b) Cassiterite
(c) Pyrolusite
(d) Magnetite 

Answer   D

Question. Froth floatation is a process of: 
(a) Oxidation
(b) Reduction
(c) Refining
(d) Concentration

Answer   D

Question. Cassiterite is an ore of
(a) Sb
(b) Ni
(c) Mn
(d) Sn 

Answer   D

Please click the link below to download CBSE Class 12 Chemistry General Principles Process of Isolation of Elements Assignment

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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

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Unit 06 General Principles And Processes Of Isolation Of Elements Assignment Chemistry CBSE Class 12

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Unit 06 General Principles And Processes Of Isolation Of Elements Assignment CBSE Class 12 Chemistry

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CBSE Chemistry Class 12 Unit 06 General Principles And Processes Of Isolation Of Elements Assignment

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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

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