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Chemical reduction is not suitable for converting:
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

Chemical reduction is not suitable for converting:

A
Bauxite into aluminium

B
Cuprite into copper

C
Haematite into iron

D
Zinc oxide into zinc

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Book:

Precalculus: Mathematics for Calculus (Standalone Book)

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Text SolutionText solutionverified iconVerified

Bauxite into aluminium because Al is a strong reducing agent it has strong affinity with oxygen than carbon
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Practice questions from Precalculus: Mathematics for Calculus (Standalone Book)

Question 1
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Roasting is generally done in case of the following:
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  2. Silicate ores
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  4. Carbonate ores
Topic

Topic:

General Principles and Processes of Isolation of Elements

Book

Book:

Precalculus: Mathematics for Calculus (Standalone Book)

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Alumino thermic process is used for the extraction of metals, whose oxides are:
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  3. Not easily reduced by hydrogen
  4. Strongly basic
Topic

Topic:

General Principles and Processes of Isolation of Elements

Book

Book:

Precalculus: Mathematics for Calculus (Standalone Book)

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Question 3
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Which of the following statement is correct?
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  2. Magnetite is an ore of manganese
  3. Haematite is an ore of mercury
  4. Pyrites is an ore of phosphorus
Topic

Topic:

General Principles and Processes of Isolation of Elements

Book

Book:

Precalculus: Mathematics for Calculus (Standalone Book)

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The substance which is mixed with the ore for removal of impurities is termed as:
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Topic:

General Principles and Processes of Isolation of Elements

Book

Book:

Precalculus: Mathematics for Calculus (Standalone Book)

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u now DC of oxygen but this number a positive figure only. m a covalent bond belongs e electronegative element. 4. The oxidation number of hydrogen is +1, ays possible to remember or except when it is bonded to metals in binary in a compound/ion, which compounds (that is compounds containing electronegative than the other. of rules has been formulated two elements). For example, in LiH, NaH, and CaH₂, its oxidation number is -1. ne oxidation number of an mpound/ion. If two or more. 5. In all its compounds, fluorine has an oxidation number of-1. Other halogens (Cl. of an element are present in Br. and I) also have an oxidation number n such as Na₂S₂O3/Cr₂O2, the of -1, when they occur as halide ions in er of the atom of that element their compounds. Chlorine, bromine and e average of the oxidation iodine when combined with oxygen, for Le atoms of that element. We example in oxoacids and oxoanions, have ge, state the rules for the positive oxidation numbers. lation number. These rules are: n the free or the uncombined atom bears an oxidation ro. Evidently each atom in H₂, P4, Ss. Na, Mg, Al has the mber zero. 6. The algebraic sum of the oxidation number of all the atoms in a compound must be zero. In polyatomic ion, the algebraic sum of all the oxidation numbers of atoms of the ion must equal the charge on the ion. Thus, the sum of oxidation number of three Group Eleme Comp Highe numb the gr The ox compo to the Alfred notati numbe numer n pare the mo and au Au(III) stanni Sn(IV) implie
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Question Text
Chemical reduction is not suitable for converting:
TopicGeneral Principles and Processes of Isolation of Elements
SubjectChemistry
ClassClass 12
Answer TypeText solution:1
Upvotes10