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Naturally occurring substances from which a metal can be profi
Precalculus: Mathematics for Calculus (Standalone Book) 7 by James Stewart,Lothar Redlin,Saleem Watson
Precalculus: Mathematics for Calculus (Standalone Book) 7 Edition
Author:
James Stewart,Lothar Redlin,Saleem Watson
Edition:
7
ISBN:
9781305071759
Publisher:
Brooks Cole
Subject:
Pre-Calculus
Question
Easy
Timing Icon

Solving time: 1 mins

Naturally occurring substances from which a metal can be profitably (or economically) extracted are called:

A
Minerals

B
Ores

C
Gangue

D
Salts

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Views: 6,257 students

Updated on: Jul 16, 2022

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Book:

Precalculus: Mathematics for Calculus (Standalone Book)

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Practice questions from Precalculus: Mathematics for Calculus (Standalone Book)

Question 1
Easy
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Views: 5,447

Cryolite is:
  1. Magnesium silicate
  2. Sodium borofluoride
  3. Sodium aluminium fluoride
  4. Magnesium silicate
Topic

Topic:

General Principles and Processes of Isolation of Elements

Book

Book:

Precalculus: Mathematics for Calculus (Standalone Book)

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Question 2
Easy
Views

Views: 5,759

If the impurity in a metal has a greater affinity for oxygen and is more easily oxidised than the metal, then the purification of metal may be carried out by:
  1. Poling
  2. Zone refining
  3. Electrolytic refining
  4. Cupellation
Topic

Topic:

General Principles and Processes of Isolation of Elements

Book

Book:

Precalculus: Mathematics for Calculus (Standalone Book)

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Question 3
Easy
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Views: 5,819

Cupellation process is used in the metallugry of:
  1. Copper
  2. Silver
  3. Aluminium
  4. Iron
Topic

Topic:

General Principles and Processes of Isolation of Elements

Book

Book:

Precalculus: Mathematics for Calculus (Standalone Book)

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Question 4
Easy
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Views: 5,517

The electrolytic method of reduction is employed for the preparation of metals that:
  1. Are weakly electropositive
  2. Are moderately electropositive
  3. Are strongly electropositive
  4. Form oxides
Topic

Topic:

General Principles and Processes of Isolation of Elements

Book

Book:

Precalculus: Mathematics for Calculus (Standalone Book)

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Practice more questions from General Principles and Processes of Isolation of Elements

Question 1
Easy
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Views: 5,560

The process used for purification is
  1. magnetic separation
  2. froth floatation
  3. leaching
  4. liquation
Topic

Topic:

General Principles and Processes of Isolation of Elements

Book

Book:

New Pattern JEE Problems Chemistry for JEE Main and Advance( Master Problem Package) (Arihant)

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Question 2
Easy
Views

Views: 5,817

Selection of temperature to carry out a reduction process depends so as to make
  1. negative
  2. positive
  3. negative
  4. positive
Topic

Topic:

General Principles and Processes of Isolation of Elements

Book

Book:

New Pattern JEE Problems Chemistry for JEE Main and Advance( Master Problem Package) (Arihant)

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Question 3
Hard
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Views: 5,487

The reduction of metal oxide is easier if metal formed is in liquid state at the temperature of reduction because
  1. of process is more negative that favour the reduction
  2. of process is more positive so favour reduction
  3. of process is more positive so favour reduction
  4. of process is more positive so favour reduction
Topic

Topic:

General Principles and Processes of Isolation of Elements

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Question 4
Easy
Views

Views: 5,287

Hall-Heroult's process is given by
Topic

Topic:

General Principles and Processes of Isolation of Elements

Book

Book:

Arihant Chemistry JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam

Exam:

JEE Mains 2019

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Practice questions on similar concepts asked by Filo students

Question 1
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(2) इलेक्र्रॉन की स्थिति में अनि क्षियता है तो केग में अनिश्चिता ज्ञात करों।
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Solid State

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Question 2
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The iron(II) compound Fe(bipy) is paramagnetic, but the corresponding cyanide compound is diamagnetic. Why do these two compounds have different magnetic properties?
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Question 3
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14. Hoffmann Bromamide Degradation reaction is given by :
  1. O=[N+]([O-])c1ccccc1
  2. O=C1NC(=O)c2ccccc21
  3. (c)
  4. CCC(N)=O
Topic

Topic:

Amines

View solution

Question 4
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Basic Concepts of Chemistry The word 'Science' (originates from the Latin verb Scientia meanings 'to know') means 2y. "oulatge acquired after a careful observation and reasoning. With the development of man's various on hers, his desire to understand the mysteries of nature also grew stronger. He made careful penations, performed experiments and tried to co-relate various happenings. Gradually, he built up the polpful for further progress. Therefore, science mis stowledge needed a systematic arrangement to th helpful for further progress. Therefore, science may be defined as systematised knowledge gained The branch of human knowled and reasoning. Science is, in fact, man's search for truth. ccurring in nature is called natural science. As deals with the natural phenomena and processes cannot be studied under a single head. Therefore as natural science is a very vast knowledge and giences. For example, Botany, Zoology and Forensic sciences etc. (ii) Physical sciences : The sciences which deal with non-living things are called physical sciences. For example, Chemistry, Physics and Astronomy etc. In this book, we shall deal only with first branch of physical sciences i.e., Chemistry. 1.1. CHEMISTRY Chemistry may be defined as the branch of science which deals with the study of composition, gructure and the properties of matter and the changes which the matter undergoes under different conditions and the laws which govern these changes. The study of chemistry can be made easy by dividing chemistry into various branches as mentioned below : 1. Inorganic Chemistry : The branch of chemistry which deals with the study of elements and compounds other than those of carbon, derived mainly from inanimate (non-living) objects, is called inorganic chemistry. 2. Organic Chemistry : The branch of chemistry which deals with the study of carbon compounds mostly derived from animals and plant kingdom is called organic chemistry. 3. Physical Chemistry : The branch of chemistry which deals with the fundamental chemical phenomena is called physical chemistry.
Topic

Topic:

Periodic Table

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Question Text
Naturally occurring substances from which a metal can be profitably (or economically) extracted are called:
Updated OnJul 16, 2022
TopicGeneral Principles and Processes of Isolation of Elements
SubjectChemistry
ClassClass 12
Answer TypeText solution:1 Video solution: 1
Upvotes137
Avg. Video Duration4 min