JEE Main Coordination Compounds Practice Questions With Solutions

Match List I with List II

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The coordination environment of ${\mathrm{Ca}}^{2+}$Ca^{2 +} ion in its complex with ${\mathrm{EDTA}}^{4-}$EDTA^{4 -} is :

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A): The total number of geometrical isomers shown by $[\mathrm{Co}(\mathrm{en}{)}_2{\mathrm{Cl}}_2{]}^{+}$\left[\right. Co \left(\right. en \left.\right)_{2} Cl_{2} \left]\right.^{+} complex ion is three.

Reason (R): $[\mathrm{Co}(\mathrm{en}{)}_2{\mathrm{Cl}}_2{]}^{+}$\left[\right. Co \left(\right. en \left.\right)_{2} Cl_{2} \left]\right.^{+} complex ion has an octahedral geometry.

In the light of the above statements, choose the most appropriate answer from the options given below :

Match List I with List II

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Number of Complexes with even number of electrons in ${\mathrm{t}}_{2\mathrm{g}}$t_{2 g} orbitals is -

${\left[\mathrm{Fe}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6\right]}^{2+},{\left[\mathrm{Co}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6\right]}^{2+},{\left[\mathrm{Co}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6\right]}^{3+},{\left[\mathrm{Cu}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6\right]}^{2+},{\left[\mathrm{Cr}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6\right]}^{2+}$\left(\left[\right. Fe \left(\left(\right. H_{2} O \left.\right)\right)_{6} \left]\right.\right)^{2 +} , \left(\left[\right. Co \left(\left(\right. H_{2} O \left.\right)\right)_{6} \left]\right.\right)^{2 +} , \left(\left[\right. Co \left(\left(\right. H_{2} O \left.\right)\right)_{6} \left]\right.\right)^{3 +} , \left(\left[\right. Cu \left(\left(\right. H_{2} O \left.\right)\right)_{6} \left]\right.\right)^{2 +} , \left(\left[\right. Cr \left(\left(\right. H_{2} O \left.\right)\right)_{6} \left]\right.\right)^{2 +}

An octahedral complex with the formula ${\mathrm{CoCl}}_3\cdot {\mathrm{nNH}}_3$CoCl_{3} \cdot nNH_{3} upon reaction with excess of ${\mathrm{AgNO}}_3$AgNO_{3} solution gives 2 moles of $\mathrm{AgCl}$AgCl. Consider the oxidation state of $\mathrm{Co}$Co in the complex is '$x$x'. The value of "$x+n$x + n" is __________.

Given below are two statements:

Statement I: $\mathrm{N}{\left({\mathrm{CH}}_3\right)}_3$N \left(\left(\right. CH_{3} \left.\right)\right)_{3} and $\mathrm{P}{\left({\mathrm{CH}}_3\right)}_3$P \left(\left(\right. CH_{3} \left.\right)\right)_{3} can act as ligands to form transition metal complexes.

Statement II: As N and P are from same group, the nature of bonding of $\mathrm{N}{\left({\mathrm{CH}}_3\right)}_3$N \left(\left(\right. CH_{3} \left.\right)\right)_{3} and $\mathrm{P}{\left({\mathrm{CH}}_3\right)}_3$P \left(\left(\right. CH_{3} \left.\right)\right)_{3} is always same with transition metals.

In the light of the above statements, choose the most appropriate answer from the options given below:

Match List I with List II

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Given below are two statements :

Statement I: ${\mathrm{PF}}_5$PF_{5} and ${\mathrm{BrF}}_5$BrF_{5} both exhibit ${\mathrm{sp}}^3\mathrm{d}$sp^{3} \textrm{ } d hybridisation.

Statement II: Both ${\mathrm{SF}}_6$SF_{6} and $[\mathrm{Co}({\mathrm{NH}}_3{)}_6{]}^{3+}$\left[\right. Co \left(\right. NH_{3} \left.\right)_{6} \left]\right.^{3 +} exhibit ${\mathrm{sp}}^3{\mathrm{d}}^2$sp^{3} \left(\textrm{ } d\right)^{2} hybridisation.

In the light of the above statements, choose the correct answer from the options given below :

Match List I with List II.

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