NEET Chemistry MCQ: NCERT d- and f-Block Properties | NEET.Guide Questions

The term ‘fool’s gold’ is used for a mineral which shines like gold. It is:

A

Iron pyrite

B

Copper glance

C

Cinnabar

D

Cadmium sulphide

Question Tags

📚 Subject:Chemistry

📑 Chapter:d- and f-Block Elements

🎯Topic:Characteristic Properties

🎓 Ncert Level:Remembering

🎯Difficulty :Medium

⚡ Time Required :1 mins

🔄Ncert Concepts :Mineral Identification, Common Mineral Names

Related Questions

Amongst ${\rm{TiF}}_6^{2 - }$ , ${\rm{CoF}}_6^{3 - }$ , ${\rm{C}}{{\rm{u}}_2}{\rm{C}}{{\rm{l}}_2}$ and ${\rm{NiCl}}_4^{2 - }$

(atomic no Ti=22, Co=27, Cu=29,Ni=28) the colourless species are

A

${\rm{CoF}}_6^{3 - }$ and ${\rm{NiCl}}_4^{2 - }$

B

${\rm{TiF}}_6^{2 - }$ and ${\rm{CoF}}_6^{3 - }$ ,

C

${\rm{C}}{{\rm{u}}_2}{\rm{C}}{{\rm{l}}_2}$ and ${\rm{NiCl}}_4^{2 - }$

D

${\rm{TiF}}_6^{2 - }$ and ${\rm{C}}{{\rm{u}}_2}{\rm{C}}{{\rm{l}}_2}$

Question Tags

📚 Subject:Chemistry

📑 Chapter:d- and f-Block Elements

🎯Topic:Characteristic Properties

🎓 Ncert Level:Application

🎯Difficulty :Medium

⚡ Time Required :3 mins

🔄Ncert Concepts :Transition metal complexes, d-orbital splitting, color of complexes, oxidation states, electronic configuration

In vapour state ${\rm{Cu}}{\left( {{\rm{N}}{{\rm{O}}_3}} \right)_2}$ and ${\rm{C}}{{\rm{u}}_2}{\left( {{\rm{C}}{{\rm{H}}_3}{\rm{COO}}} \right)_4}.2{{\rm{H}}_2}{\rm{O}}$ exist as:

A

Dimer, monomer

B

Monomer, dimer

C

Monomer, monomer

D

Dimer, dimer

Question Tags

📚 Subject:Chemistry

📑 Chapter:d- and f-Block Elements

🎯Topic:Characteristic Properties

🎓 Ncert Level:Understanding

🎯Difficulty :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :molecular structure, coordination chemistry, vapor state behavior

Acidic nature of ${\rm{Zn}}{\left( {{\rm{OH}}} \right)_2}$ is shown from the formation of the following compound with the formula:

A

${\rm{N}}{{\rm{a}}_2}{\rm{Zn}}{{\rm{O}}_2}$

B

${\rm{N}}{{\rm{a}}_2}{\rm{C}}{{\rm{O}}_3}$

C

${\rm{NaZn}}{{\rm{O}}_2}$

D

None of these

Question Tags

📚 Subject:Chemistry

📑 Chapter:d- and f-Block Elements

🎯Topic:Characteristic Properties

🎓 Ncert Level:Understanding

🎯Difficulty :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :Amphoteric nature of metal hydroxides, Chemical formula of compounds, Acid-base reactions

Railway wagon axles are made by heating iron rods embedded in charcoal powder. This process is known as

A

Tempering

B

Carburizing

C

Annealing

D

Nitriding

Question Tags

📚 Subject:Chemistry

📑 Chapter:d- and f-Block Elements

🎯Topic:Characteristic Properties

🎓 Ncert Level:Remembering

🎯Difficulty :Hard

⚡ Time Required :1 mins

🔄Ncert Concepts :Material Science, Heat Treatment, Metallurgy

Heteropoly acids are formed by:

A

Be

B

Fe

C

Mo

D

Cr

Question Tags

📚 Subject:Chemistry

📑 Chapter:d- and f-Block Elements

🎯Topic:Characteristic Properties

🎓 Ncert Level:Remembering

🎯Difficulty :Medium

⚡ Time Required :1 mins

🔄Ncert Concepts :Heteropoly acids, Transition metals

When oxyhaemoglobin changes to deoxyhaemoglobin, ${\rm{F}}{{\rm{e}}^{2 + }}$ ion changes from

A

Diamagnetic to paramagnetic

B

Paramagnetic to diamagnetic

C

Diamagnetic to ferromagnetic

D

Paramagnetic to ferromagnetic

Question Tags

📚 Subject:Chemistry

📑 Chapter:d- and f-Block Elements

🎯Topic:Characteristic Properties

🎓 Ncert Level:Understanding

🎯Difficulty :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :magnetism, electronic configuration, haemoglobin

Percentage of nickel in nickel steel is:

A

$1.5\%$

B

$3.5\%$

C

$6.5\%$

D

$8.5\%$

Question Tags

📚 Subject:Chemistry

📑 Chapter:d- and f-Block Elements

🎯Topic:Characteristic Properties

🎓 Ncert Level:Remembering

🎯Difficulty :Medium

⚡ Time Required :1 mins

🔄Ncert Concepts :Material Science, Composition of Alloys

Which of the following is philosopher’s wool?

A

${\rm{ZnO}}$

B

${\rm{HgO}}$

C

${\rm{A}}{{\rm{g}}_2}{\rm{O}}$

D

${\rm{CuO}}$

Question Tags

📚 Subject:Chemistry

📑 Chapter:d- and f-Block Elements

🎯Topic:Characteristic Properties

🎓 Ncert Level:Remembering

🎯Difficulty :Medium

⚡ Time Required :1 mins

🔄Ncert Concepts :chemical nomenclature, common names of compounds

Which concept is NOT explained by Mendel's laws?

A

Dominance and recessiveness

B

Segregation of alleles

C

Independent assortment

D

Polygenic inheritance

Question Tags

📚 Subject:Chemistry

📑 Chapter:d- and f-Block Elements

🎯Topic:Characteristic Properties

PYQ YEAR: 2022

🎓 Ncert Level:Understanding

🎯Difficulty :Medium

⚡ Time Required :1 mins

🔄Ncert Concepts :Mendelian Inheritance, Polygenic Inheritance

Most basic compound among the following is

A

$La{\left( {OH} \right)_3}$

B

$Eu{\left( {OH} \right)_3}$

C

$Er{\left( {OH} \right)_3}$

D

$Lu{\left( {OH} \right)_3}$

Question Tags

📚 Subject:Chemistry

📑 Chapter:d- and f-Block Elements

🎯Topic:Characteristic Properties

🎓 Ncert Level:Understanding

🎯Difficulty :Easy

⚡ Time Required :2 mins

🔄Ncert Concepts :Basic character of hydroxides, Lanthanide contraction, Periodic trends

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