d and f Block Elements

The number of water molecules not coordinated to copper ion directly in $CuSO_{4}\cdot\,5H_{2}O,$ is

The number of terminal oxygen atoms present in the product $B$ obtained from the following reaction is $\mathrm{FeCr}_{2}O_{4}+\mathrm{Na}_{2}\mathrm{CO}_{3}+O_{2}\rightarrow\,A+\mathrm{Fe}_{2}O_{3}+\mathrm{CO}_{2}$…

The sum of the total number of bonds between chromium and oxygen atoms in chromate and dichromate ions is ______________?

Consider the following reactions $\begin{aligned} & \mathrm{CrO}_2 \mathrm{Cl}_{2(\text { Vapour })}+\mathrm{NaOH} \rightarrow \mathrm{~B}+\mathrm{NaCl}+\mathrm{H}_2 \mathrm{O} \\ & \mathrm{~B}+\mathrm{H}^{+}…

In the ground state of atomic $\mathrm{Fe}(Z=26)$, the spin-only magnetic moment is $\times\,10^{-1}\mathrm{BM}$. (Round off to the Nearest Integer). [ Given $:\sqrt{3}=1.73,\sqrt{2}=1.41]$

The fusion of chromite ore with sodium carbonate in the presence of air leads to the formation of products \(\mathrm{A}\) and \(\mathrm{B}\) along with the evolution of $\mathrm{CO}_2 .$ The sum of spin-only magnetic…

The 'Spin only' Magnetic moment for $[\mathrm{Ni}(\mathrm{NH}_{3})_{6}]^{2+}$is______$\times\,10^{-1}$BM. (given = Atomic number of $\mathrm{Ni}:28$) Round off your answer to the nearest integer?

Among, $\mathrm{Sc}, \mathrm{Mn}, \mathrm{Co}$ and Cu , identify the element with highest enthalpy of atomisation. The spin only magnetic moment value of that element in its +2 oxidation state is _____ BM (in nearest…

Consider the following reactions: $\mathrm{NaCl}+\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}+\mathrm{H}_{2} \mathrm{SO}_{4} \rightarrow \mathrm{~A}+\mathrm{KHSO}_{4}+\mathrm{NaHSO}_{4}+\mathrm{H}_{2} \mathrm{O}$…

The metal ions that have the calculated spin only magnetic moment value of 4.9 B.M. are A. $\mathrm{Cr}^{2+}$ B. $\mathrm{Fe}^{2+}$ C. $\mathrm{Fe}^{3+}$ D. $\mathrm{Co}^{2+}$ E. $\mathrm{Mn}^{3+}$ Choose the correct…

The difference in the 'spin-only' magnetic moment values of \(\mathrm{KMnO}_4\) and the manganese product formed during titration of \(\mathrm{KMnO}_4\) against oxalic acid in acidic medium is _______ BM. (nearest…

The spin-only magnetic moment value of the ion among \(\mathrm{Ti}^{2+}, \mathrm{V}^{2+}, \mathrm{Co}^{3+}\) and $\mathrm{Cr}^{2+} ,$ that acts as strong oxidising agent in aqueous solution is _______ BM (Near integer).…