List of top Chemistry Questions on Metallurgy

Noble metals like Au, Pt dissolve in a mixture of
Identify the sets of ores of the same metal I. Kernite, Kaolinite II. Magnetite, Siderite III. Zincite, Calamine IV. Cuprite, Malachite
Which method of purification is used for refining titanium?
Which of the following statements are correct? I. Distillation method is used for refining low boiling metals II. Copper matte contains CuS and FeS III. Froth flotation is used for concentration of sulphide ores
Match the following:
figure [H]
figure
Which of the following processes represents the extraction of pure metal from its ore?
Consider the following steps involved in the extraction of Aluminium. What is \(Z\)? \[ \text{Bauxite} \xrightarrow[\;523K\;]{\text{Hot conc. NaOH}} X(aq) \xrightarrow[\;CO_2\;]{} Y \xrightarrow[\;1473K\;]{} Z \xrightarrow[\;\text{electrolysis}\;]{} Al \]
Which refining method involves the reactions I and II shown below? I. \(Zr_{(Impure)} + 2I_2 \rightarrow ZrI_4\) II. \(ZrI_4 \xrightarrow{1800 K} Zr_{(Pure)} + 2I_2\)
Wrought iron is prepared from cast iron in a reverberatory furnace. The substance commonly used to line the furnace and the chemical process involved in it are respectively
Which of the following statements is not correct about Ellingham diagram?
The ore calamine on calcination gives its oxide X. The common name of X is
Match List - I with List - II:
The principal ore of aluminium is
Match List-I (Metals) with List-II (Refining Methods): {ll} List - I & List - II
A. NICKEL & I. ELECTROLYTIC REFINING
B. TITANIUM & II. ZONE REFINING
C. GERMANIUM & III. VAN ARKEL METHOD
D. COPPER & IV. MOND PROCESS
The principal ore of aluminium is
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.
Which of the following involves electrolysis?
Identify the incorrect match
In which of the following, metal is not correctly matched with its refining process?
Identify 'A' in the following reaction.
A + Acetic anhydride \( \xrightarrow{\text{H}^+} \) Aspirin + Acetic acid}