JEE Chemistry - MCQ Practice Questions

Which of the following lanthanides has the configuration [Xe]4f⁷6s²?

The solubility product of AgCl at 25°C is 1.8 × 10⁻¹⁰. In 0.1 M NaCl solution, the concentration of Ag⁺ will be:

The geometry of [PdCl₄]²⁻ complex is:

Which of the following statements about diborane (B₂H₆) is incorrect?

The standard electrode potential for Zn²⁺/Zn is -0.76 V. In a galvanic cell combining Zn and Cu electrodes, Zn will act as:

The stability of peroxides increases in the order:

In the preparation of potassium permanganate from pyrolusite (MnO₂), the ore is first fused with KOH. The product formed is:

The primary use of zinc in brass alloy is to:

The complex [Ni(CN)₄]²⁻ is diamagnetic. This indicates:

The bond order between atoms in the superoxide ion O₂⁻ is:

Which of the following noble gases has the lowest ionization energy?

In the preparation of chlorine by oxidizing HCl with MnO₂, the oxidation state of Mn changes from:

The coordination number of Co in [Co(NH₃)₆]³⁺ complex is:

Which of the following factors does NOT affect the magnitude of crystal field splitting (Δ)?

The reaction of concentrated H₂SO₄ with carbon produces primarily:

Which of the following elements forms the most stable +6 oxidation state in its compounds?

In the extraction of iron from haematite using blast furnace, the reducing agent is primarily:

The hybridization of sulphur in SF₆ molecule is:

Which transition metal forms a complex with CO that has maximum carbonyl stretching frequency?

The aqueous solution of which salt is most acidic due to hydrolysis?