List of top Chemistry Questions on Metallurgy

Many mining methods pollute water and air as _____ leak into the surrounding ecosystem.
The process of heating the sulphide ore strongly in excess of air is called _____.
Which metal is extracted by electrolysis?
(i) Write a short note on Gravity Separation process.
(ii) Sulphuric acid is a dehydrating agent. Explain with suitable examples.
Give the basic requirement for vapour phase refining.
What is calcination? Give an example.
Identify 'A' in the following reaction.
A + Acetic anhydride \( \xrightarrow{\text{H}^+} \) Aspirin + Acetic acid}
Find the number of moles of glycerol produced when \( n \) mole of triglyceride undergoes saponification.
How many chiral carbon atoms are present in 2-chloro-3,4,5-trimethylhexane?
Which of the following set of elements is present in apatite?
In a chemical reaction, sum of formula weight of all reactants is 274 u and atom economy is 50%, calculate formula weight of desired product?
Which from following polymers is obtained by addition polymerisation method?
Identify a side chain (R) group present in serine, an amino acid.
What is the coordination number of central metal ion if it forms octahedral complex?
Identify conjugate acid-base pair from following equilibrium reaction.
$\text{HSO}_{3(\text{aq})}^- + \text{H}_3\text{O}_{(\text{aq})}^+ \rightleftharpoons \text{H}_2\text{SO}_3 + \text{H}_2\text{O}$
Which of the following involves electrolysis?
Chromite ore is
In an Ellingham-diagram, if the C/C\(_2\)O line lies below the metal oxide line, then the carbon is used to reduce the metal oxide and itself is oxidized to:
Match the metals (List-I) with their ores (List-II)\[\begin{array}{|c|c|} \hline \textbf{List-I (Metals)} & \textbf{List-II (Ores)} \\ \hline \text{(A) Mercury (Hg)} & \text{(III) Cinnabar} \\ \hline \text{(B) Lead (Pb)} & \text{(IV) Galena} \\ \hline \text{(C) Manganese (Mn)} & \text{(I) Pyrolusite} \\ \hline \text{(D) Zinc (Zn)} & \text{(II) Calamine} \\ \hline \end{array}\]
The most stable oxidation state of Iron is:
Using VSEPR theory, predict the species which has square pyramidal shape.
Hoffmann bromamide degradation reaction is shown by which of the following?
Hoffmann bromamide
In the cyanide extraction process of silver, the oxidising and reducing agents used are:
Match List I with List II

List-I

List-II

(A)Van Arkel Method(I)Copper
(B)Zone Refining(II)Titanium
(C)Mond Process(III)Germanism
(D)Electrolytic Refining(IV)Nickel

Choose the correct answer from the options given below:
Match List I with List II

List-I
Ore

List-II
Composition

(A)Calamine(I)CuFeS2
(B)Siderite(II)ZnCO3
(C)Sphalerite(III)ZnS
(D)Copper pyrite(IV)FeCO3

Choose the correct answer from the options given below: