Question
How many $EDTA$ molecules are required to make an octahedral complex with a $Ca^{2+}$ ion?

Answer

$[Ca(EDTA)^{-2}]$ complex compound form

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

The hybridization of $P$ exhibited in $P F_{5}$ is $s p^{x} d^{y}$. The value of $y$ is $...$
For a reaction taking place in three steps at same temperature, overall rate constant $\mathrm{K}=\frac{\mathrm{K}_1 \mathrm{~K}_2}{\mathrm{~K}_3}$. If $\mathrm{Ea}_1, \mathrm{Ea}_2$ and $\mathrm{Ea}_3$ are $40$,$50$ and $60 \mathrm{~kJ} / \mathrm{mol}$ respectively, the overall $\mathrm{Ea}$ is ________ $\mathrm{kJ} / \mathrm{mol}$.
Consider the following reaction

$\mathrm{MnO}_2+\mathrm{KOH}+\mathrm{O}_2 \rightarrow \mathrm{A}+\mathrm{H}_2 \mathrm{O} .$

Product ' $A$ ' in neutral or acidic medium disproportionate to give products ' $\mathrm{B}$ ' and ' $\mathrm{C}$ ' along with water. The sum of spin-only magnetic moment values of $B$ and $C$ is . . . . . .$BM$. (nearest integer)

(Given atomic number of $\mathrm{Mn}$ is $25$ )

In the molecule $CH_3C \equiv CCH = CH_2$ the maximum number of carbon atoms arranged linearly is
Solution of $12\,g$ of non - electrolyte $(A)$ prepared by dissolving it in $1000\,mL$ of water exerts the same osmotic pressure as that of $0.05\,M$ glucose solution at the same temperature. The empirical formula of $A$ is $CH _2 O$. The molecular mass of $A$ is $..........g$. (Nearest integer)
At $310\,K$, the solubility of $CaF _{2}$ in water is $2.34 \times 10^{-3}\,g / 100\,mL$. The solubility product of $CaF _{2}$ is $\times 10^{-8}( mol / L )^{3}$. (Given molar mass :$CaF _{2}=78\,g\,mol ^{-1} \text { ) }$
The work function for a metal is $4 \,eV.$ To emit a photo electron of zero velocity from the surface of the metal, the wavelength of incident light should be : ................ $\mathop {\rm{A}}\limits^{\rm{o}} $
A reaction has a half life of $1\,min.$ The time required for $99.9\, \%$ completion of the reaction is ......... $min.$ (Round off to the Nearest integer)

[Use : $\ln\, 2=0.69, \ln \,10=2.3]$

The total magnetic quantum numbers for $d$-orbital is given by
Total number of unpaired electrons in the complex ion $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}$ and $\left[\mathrm{NiCl}_4\right]^{2-}$ is...............