Question

In electro-refining of metal the impure metal is made the anode and a strip of pure metal, the cathode, during the electrolysis of an aqueous solution of a complex metal salt. This method cannot be used for refining of

A. silver

B. copper

C. aluminium

D. sodium

Answer : sodium

Solution :
Na reacts vigorously with water ( exothermic process )

Releted MCQ Question on
Inorganic Chemistry >> Ores and Metallurgy

Releted Question 1

Copper can be extracted from

A. Kupfernical

B. Dolomite

C. Malachite

D. Galena

View Answer

Releted Question 2

In the alumino-thermite process, aluminium acts as

A. an oxidizing agent

B. a flux

C. a reducing agent

D. a solder

View Answer

Releted Question 3

The chemical composition of ‘slag’ formed during the smelting process in the extraction of copper is

A. $$C{u_2}O + FeS$$

B. $$FeSi{O_3}$$

C. $$CuFe{S_2}$$

D. $$C{u_2}S + FeO$$

View Answer

Releted Question 4

Which of the following process is used in the extractive metallurgy of magnesium?

A. fused salt electrolysis

B. self reduction

C. aqueous solution electrolysis

D. thermite reduction

View Answer

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Ores and Metallurgy

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Physical Chemistry Some Basic Concepts in Chemistry Stoichiometry States of Matter Solid, Liquid and Gas Atomic Structure Chemical Thermodynamics Solutions Solid State Surface Chemistry Chemical Equilibrium Ionic Equilibrium Chemical Kinetics Redox Reaction Electrochemistry Nuclear Chemistry

Inorganic Chemistry Chemical Bonding and Molecular Structure Ores and Metallurgy Classification of Elements and Periodicity in Properties Hydrogen S - Block Elements P - Block Elements D and F Block Elements Co - ordination Compounds Qualitative Analysis Preparation and Properties of Compounds Environmental Chemistry

Organic Chemistry General Organic Chemistry Isomerism Purification and Characterisation of Organic Compounds Hydrocarbons (Alkane, Alkene and Alkyne)Aromatic hydrocarbon Electrophilic Aromatic Substitution (Haloalkanes and Haloarenes)Alkyl and Aryl Halide Reactions on Benzene Alcohol, Phenol and Ether Aldehyde and Ketone Carboxylic Acid Organic Compounds Containing Nitrogen Name Reactions Polymers Biomolecules Chemistry in Everyday Life Practical Organic Chemistry

In electro-refining of metal the impure metal is made the anode and a strip of pure metal, the cathode, during the electrolysis of an aqueous solution of a complex metal salt. This method cannot be used for refining of

Releted MCQ Question on Inorganic Chemistry >> Ores and Metallurgy

Copper can be extracted from

In the alumino-thermite process, aluminium acts as

The chemical composition of ‘slag’ formed during the smelting process in the extraction of copper is

Which of the following process is used in the extractive metallurgy of magnesium?

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Releted MCQ Question on
Inorganic Chemistry >> Ores and Metallurgy

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Ores and Metallurgy