Here we will provide you the 50+ MCQ Questions of General Principles and Process of Isolation of Elements for NEET-UG. Surface Chemistry is the chapter 6 in Class XII or Class 12 Chemistry NCERT Unit General Principles and Process of Isolation of Elements NEET (conducted by NTA) is based on the NCERT book.
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General Principles and Process of Isolation of Elements NEET MCQ
Which of the following is NOT a step involved in the extraction of metals?
a) Concentration of ores
b) Reduction of ores
c) Electrolysis of ores
d) Purification of metals
Answer: c) Electrolysis of ores
Which of the following statements is true regarding the concentration of ores?
a) It involves the removal of impurities from the ore
b) It involves the conversion of the ore into oxide form
c) It involves the conversion of the ore into pure metal
d) It involves the separation of the ore from gangue
Answer: d) It involves the separation of the ore from gangue
Which of the following is the correct sequence of steps involved in the metallurgy of iron?
a) Roasting → Smelting → Refining
b) Smelting → Roasting → Refining
c) Roasting → Refining → Smelting
d) Smelting → Refining → Roasting
Answer: b) Smelting → Roasting → Refining
Which of the following statements is true regarding the refining of metals?
a) It involves the removal of impurities from the metal
b) It involves the conversion of the metal into oxide form
c) It involves the conversion of the metal into pure metal
d) It involves the separation of the metal from gangue
Answer: a) It involves the removal of impurities from the metal
Which of the following is NOT a method of extraction of metals?
a) Electrolysis
b) Reduction with carbon
c) Reduction with hydrogen
d) Oxidation with air
Answer: d) Oxidation with air
Which of the following is the correct sequence of steps involved in the extraction of copper?
a) Concentration → Roasting → Smelting → Electrolysis
b) Roasting → Concentration → Smelting → Electrolysis
c) Concentration → Smelting → Roasting → Electrolysis
d) Smelting → Concentration → Roasting → Electrolysis
Answer: a) Concentration → Roasting → Smelting → Electrolysis
Which of the following is a reducing agent used in the extraction of iron?
a) Coke
b) Limestone
c) Silica
d) Calcium carbonate
Answer: a) Coke
In the electrolytic refining of copper, which electrode is made of pure copper?
a) Anode
b) Cathode
c) Both anode and cathode
d) Neither anode nor cathode
Answer: b) Cathode
Which of the following metals cannot be extracted by electrolysis of their aqueous solutions?
a) Sodium
b) Magnesium
c) Aluminium
d) Zinc
Answer: b) Magnesium
Which of the following metals is extracted by the Mond process?
a) Silver
b) Gold
c) Platinum
d) Nickel
Answer: d) Nickel
Which of the following methods is used for the extraction of aluminium?
a) Electrolysis of aluminium oxide
b) Reduction of aluminium oxide with carbon
c) Reduction of aluminium oxide with hydrogen
d) Roasting of aluminium oxide
Answer: a) Electrolysis of aluminium oxide
Which of the following metals is extracted by the Hall-Heroult process?
a) Iron
b) Aluminium
c) Copper
d) Zinc
Answer: b) Aluminium
Which of the following statements is true regarding the extraction of gold?
a) Gold is extracted by electrolysis
b) Gold is extracted by smelting
c) Gold is extracted by leaching
d) Gold is extracted by roasting
AAnswer: c) Gold is extracted by leaching
Which of the following metals is extracted by the cyanide process?
a) Silver
b) Gold
c) Copper
d) Zinc
Answer: b) Gold
Which of the following is the correct sequence of steps involved in the extraction of silver?
a) Roasting → Reduction → Refining
b) Reduction → Refining → Roasting
c) Refining → Roasting → Reduction
d) Roasting → Refining → Reduction
Answer: a) Roasting → Reduction → Refining
Which of the following is NOT a method used for the extraction of iron?
a) Blast furnace method
b) Direct reduction method
c) Bessemer process
d) Zone refining method
Answer: d) Zone refining method
In the extraction of zinc, which of the following compounds is heated with coke?
a) Zinc blende
b) Zincite
c) Calamine
d) Cryolite
Answer: a) Zinc blended
Which of the following statements is true regarding the extraction of magnesium?
a) Magnesium is extracted by the electrolysis of its molten oxide
b) Magnesium is extracted by the reduction of its oxide with carbon
c) Magnesium is extracted by the reduction of its chloride with sodium
d) Magnesium is extracted by the reduction of its oxide with hydrogen
Answer: c) Magnesium is extracted by the reduction of its chloride with sodium
Which of the following is NOT a method used for the extraction of copper?
a) Blast furnace method
b) Bessemer process
c) Electrolytic refining
d) Matte smelting
Answer: b) Bessemer process
In the extraction of silver, which of the following compounds is roasted?
a) Silver sulphide
b) Silver oxide
c) Silver nitrate
d) Silver chloride
Answer: a) Silver sulphide
Which of the following is NOT a method used for the extraction of copper?
a) Blast furnace method
b) Bessemer process
c) Electrolytic refining
d) Matte smelting
AAnswer: b) Bessemer process
In the extraction of gold, which of the following compounds is treated with cyanide?
a) Gold chloride
b) Gold oxide
c) Gold sulphide
d) Gold nitrate
Answer: a) Gold chloride
Which of the following statements is true regarding the extraction of platinum?
a) Platinum is extracted by the reduction of its oxide with carbon
b) Platinum is extracted by the reduction of its oxide with hydrogen
c) Platinum is extracted by the electrolysis of its molten chloride
d) Platinum is extracted by the cyanide process
AAnswer: c) Platinum is extracted by the electrolysis of its molten chloride
In the extraction of lead, which of the following compounds is roasted?
a) Lead sulphide
b) Lead oxide
c) Lead nitrate
d) Lead chloride
Answer: a) Lead sulphide
Which of the following methods is used for the extraction of uranium?
a) Zone refining
b) Electrolysis
c) Solvent extraction
d) Amalgamation
AAnswer: c) Solvent extraction
In the extraction of tin, which of the following compounds is roasted?
a) Tin sulphide
b) Tin oxide
c) Tin nitrate
d) Tin chloride
Answer: a) Tin sulphide
Which of the following statements is true regarding the extraction of nickel?
a) Nickel is extracted by the reduction of its oxide with carbon
b) Nickel is extracted by the reduction of its oxide with hydrogen
c) Nickel is extracted by the Mond process
d) Nickel is extracted by the electrolysis of its molten chloride
AAnswer: d) Nickel is extracted by the electrolysis of its molten chloride
In the extraction of titanium, which of the following compounds is reduced using magnesium?
a) Titanium sulphide
b) Titanium oxide
c) Titanium chloride
d) Titanium nitrate
Answer: c) Titanium chloride
Which of the following methods is used for the extraction of tungsten?
a) Zone refining
b) Electrolysis
c) Reduction with carbon
d) Solvent extraction
AAnswer: c) Reduction with carbon
Which of the following statements is true regarding the extraction of mercury?
a) Mercury is extracted by the reduction of its oxide with carbon
b) Mercury is extracted by the reduction of its sulphide with hydrogen
c) Mercury is extracted by the electrolysis of its molten chloride
d) Mercury is extracted by the cyanide process
Answer: b) Mercury is extracted by the reduction of its sulphide with hydrogen
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