Back to GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
NEET UG CHEMISTRY MCQ: GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
1
Hard
1 of 1
Understanding
+4 | -1
Which of the following statements are incorrect?
I. Zinc can be extracted by self-reduction.
II. A depressant prevents certain type of particles to come to the froth.
III. Copper matte contains and .
IV. The solidified copper obtained from reverberatory furnace has blistered appearance due to evolution of during the extraction.
I. Zinc can be extracted by self-reduction.
II. A depressant prevents certain type of particles to come to the froth.
III. Copper matte contains and .
IV. The solidified copper obtained from reverberatory furnace has blistered appearance due to evolution of during the extraction.
View answer and explanation
Correct option: C
I and III
Option C (I and III) is correct because Zinc cannot be extracted by self-reduction, and copper matte contains Cu2S and FeS, not ZnS.
More Questions from GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
Practice All Chapter MCQs →
Mac Arthur and Forest cyanide process is used in the extraction of:
Which form of iron has lowest percentage of carbon?
Assertion (A): Wolframite impurities are separated from cassiterite by electromagnetic separation.
Reason (R): Cassiterite being magnetic is attracted by the magnet and forms a separate heap. Which one is an ore of sodium? Aluminothermic process is used for the extraction of metals, whose oxides are: In the extraction of copper, the metal formed in the Bessemer’s converter is due to the reaction:
Reason (R): Cassiterite being magnetic is attracted by the magnet and forms a separate heap. Which one is an ore of sodium? Aluminothermic process is used for the extraction of metals, whose oxides are: In the extraction of copper, the metal formed in the Bessemer’s converter is due to the reaction: