CBSE · Chemistry

General Principles and Processes of Isolation of Metals

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Sample questions

MCQ
The chemical composition of slag formed during the smelting process in the extraction of copper is
MCQ
Sodium cyanide is added as a depressant in the froth floatation process when the ore contains a mixture of $\mathrm{ZnS}$ and PbS. This is because
MCQ
Carbon monoxide forms volatile compound with
MCQ
Which one of the following is the mineral for tin?
MCQ
What is the slag formed in the extraction of iron?
MCQ
Match the following. The correct answer is (A) (B) (C) (D)
MCQ
In Ellingham diagram, the plot is drawn between
MCQ
Which of the following is used as froth stabilizer in froth floatation process?
MCQ
Identify the correct statements from the following: i. In the extraction of $\(\mathrm{Ag}\)$ and $\(\mathrm{Au}\),$ zinc is used as reducing agent. ii. Impure zinc can be refined by distillation method. iii. Malachite…
MCQ
Match the following items of List-I with those of List-II $\(\begin{array}{|c|c|c|c|}$ $\hline$ & $\text$ { List I } & & $\text$ { List II } \\ $\hline(\mathrm{A})$ & $\text$ { Nickel } & $\text$ { (1) } & $\text$ {…
MCQ
Which of the following are carbonate ores ? I. Siderite II. Kaolinite III. Calamine IV. Sphalerite
MCQ
Calamine, bauxite, malachite and siderite respectively are ores of .........
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