If the complex is [M(H2O)6]Cl2,M will have +2 oxidation state and hence, it has already lost 2 electrons from s− orbital. Since it has μ=3.9 =n(n+2)⇒n=3
3 unpaired so, the configuration can either be:
The pair of metal ions that can give a spin only magnetic moment of 3.9BM for the complex [M(H2O)6]Cl2 , is:
Held on 12 Jan 2019 · Verified 6 Jul 2026.
Co2+ and Fe2+
V2+ and Fe2+
Cr2+ and Mn2+
V2+ and Co2+
Sign in to track your attempts and accuracy.
Sign in to keep a private note on this question. Nothing you write is ever public.
First and second ionization enthalpies of lithium are $520$ kJ mol$^{-1}$ and $7297$ kJ mol$^{-1}$ respectively. Energy required to convert $3.5$ mg lithium (g) into $\text{Li}^{2+}$(g) $[\text{Li(g)} \rightarrow \text{Li}^{2+}\text{(g)}]$ is _______ kJ mol$^{-1}$. (nearest integer) [Molar mass of Li $= 7$ g mol$^{-1}$]
Regarding the hydrides of group 15 elements $\mathrm{EH}_{3}(\mathrm{E}=\mathrm{N}, \mathrm{P}, \mathrm{As}, \mathrm{Sb})$, select the correct statement from the following: A. The stability of hydrides decreases down the group. B. The basicity of hydrides decreases down the group. C. The reducing character increases down the group. D. The boiling point increases down the group. Choose the correct answer from the options given below:
Which of the following elements has the highest electronegativity?
Which of the following elements has the highest electronegativity?
In a period, the first ionisation enthalpy of the element at extreme left and the negative electron gain enthalpy of the extreme right element, except noble gases, are respectively.
Work through every JEE Main Inorganic Chemistry PYQ, year by year.