JEE Chemistry - MCQ Practice Questions

What is the coordination number of zinc in [Zn(CN)₄]²⁻?

The hybridization of sulfur in SF₆ is:

Which compound shows the phenomenon of disproportionation?

The magnetic moment of [Fe(CN)₆]⁴⁻ is approximately:

Which metal exhibits variable oxidation states primarily due to incomplete d-orbital filling?

In the extraction of copper using electrorefining, what is the anode material?

Which of the following is a non-stoichiometric compound?

The white precipitate formed when AgNO₃ is added to a solution containing Cl⁻ ions is:

Which of the following complexes would show optical isomerism?

The ionization energy generally increases across a period because:

Which statement about borax is correct?

In the context of transition metals, what does the term 'lanthanide contraction' refer to?

Which halogen has the lowest electronegativity?

The reduction potential of Fe³⁺/Fe²⁺ is +0.77 V. This indicates:

Which of the following compounds would exhibit hydrogen bonding?

Which of the following d-block elements has the configuration [Ar]3d⁵4s¹?

The spin-only magnetic moment of Fe²⁺ in its ground state is approximately:

Among the following oxides, which one is amphoteric?

In the extraction of iron from haematite using blast furnace, carbon monoxide acts as:

The crystal field splitting energy (Δ) for [Co(H₂O)₆]²⁺ is approximately 9,300 cm⁻¹. The complex will be: