In the cobalt-carbonyl complex: $\left[\mathrm{Co}_2(\mathrm{CO})_4\right]$, number of Co -Co bonds is " X " and terminal CO ligands is " Y ". $\mathrm{X}+ Y=$ $\_\_\_\_$

The number of statement(s) correct from the following for copper (at no. 29) is/are ______

If the uncertainty in velocity and position of a minute particle in space are, $2.4 \times 10^{-26}\left(\mathrm{~ms}^{-1}\right)$ and $10^{-7}(\mathrm{~m})$ respectively. The mass of the particle...

The spin-only magnetic moment value of an octahedral complex among $\mathrm{CoCl}_3 .4 \mathrm{NH}_3, \mathrm{NiCl}_2 .6 \mathrm{H}_2 \mathrm{O}$ and $\mathrm{PtCl}_4 .2 \mathrm{HCl}$, which upon reaction with...

If $\left[\mathrm{Cu}\left(\mathrm{H}_2 \mathrm{O}\right)_4\right]^{2+}$ absorbs a light of wavelength 600 nm for d–d transition, then the value of octahedral crystal field splitting energy for $\left[\mathrm{Cu}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}$...

Which of the following will have maximum stabilization due to crystal field?

Given below are two statements :
Statement I : $[\mathrm{Ni}(\mathrm{CN}) 4]^2$ is square planar and diamagnetic complex. with $\mathrm{dsp}^2$ hybridization for Ni but $[\mathrm{Ni}(\mathrm{CO}) 4]$...

$\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}$ and $\left[\mathrm{CoF}_6\right]^{3-}$ are respectively known as:

White precipitate of AgCl dissolves in aqueous ammonia solution due to formation of :

Match List – I with List – II