50+ JEE Mains MCQ Questions The d and f Block Elements with Solutions

Preparing for the Joint Entrance Exam (JEE) can be a daunting task. With so many subjects to cover and so many topics to study, it can be challenging to know where to start. One essential topic in the JEE Mains syllabus is the The d and f Block Elements. In this article, we will provide 50+ MCQ questions on the The d and f Block Elements, along with detailed solutions to help you prepare for the JEE Mains exam.

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These 50+ MCQ questions are selected by the experts of studyrate.in and these are more difficult questions, which will help you to better understand The d and f Block Elements JEE Mains MCQ Questions with Answers.

The d and f Block Elements JEE Mains MCQ


Which of the following elements has the highest first ionization enthalpy?
a) Zinc (Zn)
b) Copper (Cu)
c) Chromium (Cr)
d) Scandium (Sc)

Answer: b) Copper (Cu) Explanation: Copper has the highest first ionization enthalpy among the given options due to its stable electron configuration.

The element that shows the maximum number of oxidation states among the following is:
a) Iron (Fe)
b) Cobalt (Co)
c) Manganese (Mn)
d) Chromium (Cr)

Answer: c) Manganese (Mn) Explanation: Manganese exhibits the maximum number of oxidation states among the given options, ranging from -3 to +7.

Which of the following elements exhibits the highest magnetic moment?
a) Iron (Fe)
b) Cobalt (Co)
c) Nickel (Ni)
d) Copper (Cu)

Answer: b) Cobalt (Co) Explanation: Cobalt exhibits the highest magnetic moment among the given options due to its partially filled d-orbitals.

Which of the following compounds is commonly used as a catalyst in the Haber process?
a) Iron(III) oxide (Fe2O3)
b) Manganese(IV) oxide (MnO2)
c) Cobalt(II) oxide (CoO)
d) Nickel(II) oxide (NiO)

Answer: a) Iron(III) oxide (Fe2O3) Explanation: Iron(III) oxide is commonly used as a catalyst in the Haber process for the production of ammonia.

The transition element that forms the most stable complexes is:
a) Copper (Cu)
b) Zinc (Zn)
c) Nickel (Ni)
d) Chromium (Cr)

Answer: a) Copper (Cu) Explanation: Copper forms the most stable complexes among the given options due to its ability to exhibit variable oxidation states.

The transition metal that exhibits the highest oxidation state is:
a) Manganese (Mn)
b) Chromium (Cr)
c) Cobalt (Co)
d) Iron (Fe)

Answer: b) Chromium (Cr) Explanation: Chromium exhibits the highest oxidation state of +6 among the given options in compounds such as potassium dichromate (K2Cr2O7).

Which of the following elements exhibits the highest melting point?
a) Iron (Fe)
b) Tungsten (W)
c) Copper (Cu)
d) Nickel (Ni)

Answer: b) Tungsten (W) Explanation: Tungsten has the highest melting point among the given options, making it suitable for high-temperature applications.

The element that exhibits the phenomenon of variable oxidation states is:
a) Zinc (Zn)
b) Silver (Ag)
c) Gold (Au)
d) Manganese (Mn)

Answer: d) Manganese (Mn) Explanation: Manganese exhibits the phenomenon of variable oxidation states, where it can exist in multiple oxidation states in its compounds.

The element that shows maximum similarity with the 3d transition series is:
a) Scandium (Sc)
b) Titanium (Ti)
c) Vanadium (V)
d) Iron (Fe)

Answer: b) Titanium (Ti) Explanation: Titanium shows maximum similarity with the 3d transition series elements in terms of its electronic configuration and chemical properties.

The compound used in the production of stainless steel is:
a) Nickel-chromium alloy
b) Iron-chromium alloy
c) Iron-nickel alloy
d) Nickel-copper alloy

Answer: b) Iron-chromium alloy Explanation: Stainless steel is produced using an iron-chromium alloy, which provides corrosion resistance and strength.

The compound used as a pigment in ceramics and paints is:
a) Titanium dioxide (TiO2)
b) Iron(III) oxide (Fe2O3)
c) Chromium(III) oxide (Cr2O3)
d) Copper(II) oxide (CuO)

Answer: c) Chromium(III) oxide (Cr2O3) Explanation: Chromium(III) oxide is used as a pigment in ceramics and paints due to its stable green color.

The element that is commonly used in the extraction of silver from its ores is:
a) Zinc (Zn)
b) Copper (Cu)
c) Iron (Fe)
d) Mercury (Hg)

Answer: b) Copper (Cu) Explanation: Copper is commonly used in the extraction of silver from its ores through a process known as the Parkes process.

The compound used in the production of blue glass is:
a) Cobalt(II) oxide (CoO)
b) Copper(II) oxide (CuO)
c) Chromium(III) oxide (Cr2O3)
d) Manganese(IV) oxide (MnO2)

Answer: a) Cobalt(II) oxide (CoO) Explanation: Cobalt(II) oxide is used in the production of blue glass due to its blue color.

The transition metal that forms the most stable carbonyl complex is:
a) Iron (Fe)
b) Nickel (Ni)
c) Cobalt (Co)
d) Manganese (Mn)

Answer: c) Cobalt (Co) Explanation: Cobalt forms the most stable carbonyl complex, known as tetracarbonyl cobalt (Co(CO)4), among the given options.

The element that forms an unstable +4 oxidation state is:
a) Titanium (Ti)
b) Vanadium (V)
c) Manganese (Mn)
d) Iron (Fe)

Answer: b) Vanadium (V) Explanation: Vanadium forms an unstable +4 oxidation state in compounds due to the presence of unfilled d-orbitals.

The transition metal that exhibits the highest catalytic activity is:
a) Palladium (Pd)
b) Platinum (Pt)
c) Rhodium (Rh)
d) Ruthenium (Ru)

Answer: a) Palladium (Pd) Explanation: Palladium exhibits the highest catalytic activity among the given options, making it useful in various catalytic reactions.

The element that forms an unstable +7 oxidation state is:
a) Molybdenum (Mo)
b) Tungsten (W)
c) Rhenium (Re)
d) Osmium (Os)

Answer: c) Rhenium (Re) Explanation: Rhenium forms an unstable +7 oxidation state in compounds due to the presence of unfilled d-orbitals.

The compound used in the production of white paint and toothpaste is:
a) Titanium dioxide (TiO2)
b) Zinc oxide (ZnO)
c) Barium sulfate (BaSO4)
d) Lead oxide (PbO)

Answer: a) Titanium dioxide (TiO2) Explanation: Titanium dioxide is used in the production of white paint and toothpaste due to its high refractive index and white color.

The element that exhibits the highest nuclear charge in its 3d series is:
a) Chromium (Cr)
b) Copper (Cu)
c) Iron (Fe)
d) Zinc (Zn)

Answer: d) Zinc (Zn) Explanation: Zinc exhibits the highest nuclear charge in its 3d series among the given options.

The compound used in the production of magnetic recording tapes is:
a) Iron(III) oxide (Fe2O3)
b) Cobalt(II) oxide (CoO)
c) Nickel(II) oxide (NiO)
d) Manganese(IV) oxide (MnO2)

Answer: a) Iron(III) oxide (Fe2O3) Explanation: Iron(III) oxide is used in the production of magnetic recording tapes due to its magnetic properties.

The element that forms the largest number of stable oxidation states is:
a) Manganese (Mn)
b) Chromium (Cr)
c) Vanadium (V)
d) Iron (Fe)

Answer: a) Manganese (Mn) Explanation: Manganese forms the largest number of stable oxidation states among the given options, ranging from -3 to +7.

The transition metal that exhibits the highest enthalpy of atomization is:
a) Tungsten (W)
b) Molybdenum (Mo)
c) Chromium (Cr)
d) Vanadium (V)

Answer: c) Chromium (Cr) Explanation: Chromium exhibits the highest enthalpy of atomization among the given options, indicating strong metallic bonding.

The element that exhibits the highest coordination number in its complexes is:
a) Cobalt (Co)
b) Platinum (Pt)
c) Rhodium (Rh)
d) Palladium (Pd)

Answer: b) Platinum (Pt) Explanation: Platinum exhibits the highest coordination number in its complexes among the given options, forming stable complexes with a coordination number of 6 or higher.

The compound used in the production of catalysts for the hydrogenation of vegetable oils is:
a) Nickel(II) oxide (NiO)
b) Palladium(II) oxide (PdO)
c) Platinum(II) oxide (PtO)
d) Rhodium(III) oxide (Rh2O3)

Answer: b) Palladium(II) oxide (PdO) Explanation: Palladium(II) oxide is used in the production of catalysts for the hydrogenation of vegetable oils due to its catalytic properties.

The element that exhibits the highest boiling point among the given options is:
a) Platinum (Pt)
b) Gold (Au)
c) Rhodium (Rh)
d) Palladium (Pd)

Answer: b) Gold (Au) Explanation: Gold has the highest boiling point among the given options, indicating strong metallic bonding.

The compound used as a catalyst in the contact process for the production of sulfuric acid is:
a) Vanadium(V) oxide (V2O5)
b) Platinum(IV) oxide (PtO2)
c) Palladium(II) oxide (PdO)
d) Manganese(IV) oxide (MnO2)

Answer: a) Vanadium(V) oxide (V2O5) Explanation: Vanadium(V) oxide is used as a catalyst in the contact process for the production of sulfuric acid.

The element that forms the most stable complex with cyanide ions is:
a) Iron (Fe)
b) Cobalt (Co)
c) Copper (Cu)
d) Nickel (Ni)

Answer: c) Copper (Cu) Explanation: Copper forms the most stable complex with cyanide ions among the given options, known as the copper-cyanide complex.

The compound used in the production of green fireworks is:
a) Barium chloride (BaCl2)
b) Copper chloride (CuCl2)
c) Chromium chloride (CrCl3)
d) Nickel chloride (NiCl2)

Answer: c) Chromium chloride (CrCl3) Explanation: Chromium chloride is used in the production of green fireworks due to its ability to emit green-colored light when heated.

The element that exhibits the highest number of unpaired electrons in its ground state is:
a) Manganese (Mn)
b) Chromium (Cr)
c) Vanadium (V)
d) Iron (Fe)

Answer: b) Chromium (Cr) Explanation: Chromium exhibits the highest number of unpaired electrons (6) in its ground state among the given options.

The compound used as a catalyst in the production of polyethylene is:
a) Titanium(IV) chloride (TiCl4)
b) Chromium(III) chloride (CrCl3)
c) Palladium(II) chloride (PdCl2)
d) Iron(III) chloride (FeCl3)

Answer: a) Titanium(IV) chloride (TiCl4) Explanation: Titanium(IV) chloride is used as a catalyst in the production of polyethylene through the Ziegler-Natta polymerization process.

We hope there JEE MCQ of Class 12 : The d and f Block Elements will help you to score an excellent rank in JEE Mains and Advanced. If you have any queries feel free to write in the comments section. We at Study Rate are always ready to serve our students.

Sneha

Master's in Biology, Skilled in vocational training. Strong Analytical and creative knowledge.

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