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Test: General Methods of Isolation and Purification - 1 - Chemistry MCQ


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10 Questions MCQ Test Inorganic Chemistry - Test: General Methods of Isolation and Purification - 1

Test: General Methods of Isolation and Purification - 1 for Chemistry 2024 is part of Inorganic Chemistry preparation. The Test: General Methods of Isolation and Purification - 1 questions and answers have been prepared according to the Chemistry exam syllabus.The Test: General Methods of Isolation and Purification - 1 MCQs are made for Chemistry 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: General Methods of Isolation and Purification - 1 below.
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Test: General Methods of Isolation and Purification - 1 - Question 1

In the equation,
4M + 8CN + 2H2O + O2 → 4[M(CN)2] + 4OH, the metal M is

Detailed Solution for Test: General Methods of Isolation and Purification - 1 - Question 1

Least reactive metals like silver and gold are obtained by the cyanide process. In this process, the impure metal is treated with NaCN (solution) and the air is passed. Metal is converted into the soluble complex as

4Au + 8CN− + 2H2O + O→ 4[Au(CN)2]− (soluble complex) + 4OH

Test: General Methods of Isolation and Purification - 1 - Question 2

In the extraction of copper from sulphide ore, the metal is formed by reduction of Cu2O with

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Test: General Methods of Isolation and Purification - 1 - Question 3

Cassiterite is the ore of which metal?

Test: General Methods of Isolation and Purification - 1 - Question 4

In the electrolytic method of obtaining aluminium from purified bauxite, cryolite is added to the charge in order to:

Test: General Methods of Isolation and Purification - 1 - Question 5

During the process of electrolytic refining of copper, some metals present as impurity settle as ‘anode mud’. These are:

Test: General Methods of Isolation and Purification - 1 - Question 6

Heating ore with carbon in the absence of air is known as:

Test: General Methods of Isolation and Purification - 1 - Question 7

The method of zone refining of metals is based upon the principle of

Test: General Methods of Isolation and Purification - 1 - Question 8

In electrorefining of copper some gold is produced as:

Test: General Methods of Isolation and Purification - 1 - Question 9

The purest form of iron is:

Test: General Methods of Isolation and Purification - 1 - Question 10

Extraction of zinc from zinc blende is achieved by

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