Test: Previous Year Questions - Isolation (Level 1)


8 Questions MCQ Test Chemistry Class 12 | Test: Previous Year Questions - Isolation (Level 1)


Description
This mock test of Test: Previous Year Questions - Isolation (Level 1) for Class 12 helps you for every Class 12 entrance exam. This contains 8 Multiple Choice Questions for Class 12 Test: Previous Year Questions - Isolation (Level 1) (mcq) to study with solutions a complete question bank. The solved questions answers in this Test: Previous Year Questions - Isolation (Level 1) quiz give you a good mix of easy questions and tough questions. Class 12 students definitely take this Test: Previous Year Questions - Isolation (Level 1) exercise for a better result in the exam. You can find other Test: Previous Year Questions - Isolation (Level 1) extra questions, long questions & short questions for Class 12 on EduRev as well by searching above.
QUESTION: 1

The metal extracted by leaching with cyanide is :

 [AIEEE-2002]

Solution:
QUESTION: 2

When the sample of Cu with Zn impurity is to be purfied by electrolysis, the appropriate electrodes are :

Cathode Anode

[AIEEE-2002]

Solution:
QUESTION: 3

Aluminium is industrially prepared by -  

[AIEEE-2002]

Solution:
QUESTION: 4

The substance not likely to contain CaCO3 is –

[AIEEE-2003]

Solution:
QUESTION: 5

Which one of the following ores is best concentrated by froath-flotation method ?

[AIEEE-2004]

Solution:
QUESTION: 6

During the process of electrolytic refining of copper, some metals present as impurity settle as 'anode mud'. These are –  

[AIEEE-2005]

Solution:
QUESTION: 7

Heating mixture of Cu2O and Cu2S will give –

[AIEEE-2005]

Solution:
QUESTION: 8

Which of the following factors is of no significance for roasting sulphide ores to the oxides and not subjecting the sulphide ores to carbon reduction directly ?  

[AIEEE-2008]

Solution:

Metal sulphides are less stable than the corresponding oxides
Explanation: