Question

Which of the following changes take place during roasting?
(i) Impurities are removed as their volatile oxides.
(ii) Ore is converted into its oxide.
(iii) Changes like oxidation, chlorination, etc. take place.

A. (i) and (ii)

B. (ii) and (iii)

C. (i) and (iii)

D. (i), (ii) and (iii)

Answer : (i), (ii) and (iii)

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

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

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

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

Practice More Releted MCQ Question on
Ores and Metallurgy

Practice More MCQ Question on Chemistry Section

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