d and f Block Elements — JEE Advanced PYQs

One of the products formed from the reaction of permanganate ion with iodide ion in neutral aqueous medium is

The pair(s) of diamagnetic ions is(are)

In the scheme given below, $\mathbf{X}$ and $\mathbf{Y}$, respectively, are

Metal halide $\stackrel{\text{ aq. }\mathrm{NaOH}}{\to }$ White precipitate (P) + Filtrate (Q) …

LIST-I contains metal species and LIST-II contains their properties.
| (II) ${\left[{\mathrm{RuCl}}_6\right]}^{2-}$ | (Q) …

The calculated spin only magnetic moments of ${\left[\mathrm{Cr}{\left({\mathrm{NH}}_3\right)}_6\right]}^{3+}$ and ${\left[{\mathrm{CuF}}_6\right]}^{3-}$ in BM, respectively, are (Atomic numbers of Cr and Cu are 24 and 29, respectively)

An acidified solution of potassium chromate was layered with an equal volume of amyl alcohol. When it was shaken after the addition of 1 mL of $3\%{\mathrm{H}}_2{\mathrm{O}}_2$, a blue alcohol layer was obtained. The blue color is due to the formation of a chromium (VI) comp …

Fusion of ${\mathrm{MnO}}_2$ with KOH in presence of ${\mathrm{O}}_2$ produces a salt $\mathbf{W}$. Alkaline solution of $\mathbf{W}$ upon eletrolytic oxidation yields another salt $\mathbf{X}$. The manganese containing ions present in $\mathbf{W}$ and $\mathbf{X}$, …

The ammonia prepared by treating ammonium sulphate with calcium hydroxide is completely used by ${\mathrm{NiCl}}_2.6{\mathrm{H}}_2\mathrm{O}$ to form a stable coordination compound. Assume that both the reactions are 100% complete. If 1584 g of ammonium sulphate and 952 g of …

The correct statement(s) about ${\mathrm{Cr}}^{2+}$ and ${\mathrm{Mn}}^{3+}$ is(are)
[Atomic numbers of $\mathrm{Cr}=24$ and $\mathrm{Mn}=25$]

When a metal rod $\mathbf{M}$ is dipped into an aqueous colourless concentrated solution of compound $\mathbf{N}$, the solution turns light blue. Addition of aqueous NaCl to the blue solution gives a white precipitate $\mathbf{O}$. Addition of aqueous ${\mathrm{NH}}_3$ di …

The oxidation number of Mn in the product of alkaline oxidative fusion of ${\mathrm{MnO}}_2$ is

Among the following, the coloured compound is

${\mathrm{CuSO}}_4$ decolourises on addition of KCN, the product is