Question 2 :
<span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small"><p class="wysiwyg-text-align-left">According to Werner&#8217;s theory of valency transition&#160;metals possesses:</p>

Question 3 :
<p><span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small">The ionizable valency of Ni in Ni(CO)<span class="wysiwyg-font-size-medium">$_{4}$<span class="wysiwyg-font-size-xx-small"><span class="wysiwyg-font-size-xx-small"> <span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small">is __________.</p>

Question 4 :
<p><span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small">The ionizable valency of Ni in Ni(CO)<span class="wysiwyg-font-size-medium">$_{4}$<span class="wysiwyg-font-size-xx-small"><span class="wysiwyg-font-size-xx-small"> <span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small">is __________.</p>

Question 6 :
$K_{3}\left [ Al\left ( C_{2}O_{4} \right )_{3} \right ]$ is called:<br/>

Question 7 :
The primary and secondary valency of a central metal ion in $[Co(NH_3)_4CO_3]$ <br> $Cl$ complex is _________ and _________ respectively.

Question 8 :
The IUPAC name of&#160;$\displaystyle \left [ CuCl_{4} \right ]^{2-}$ is tetrachlorido cuprate (II).

Question 9 :
Among the following complexes (K-P) :<br/>$K_3[Fe(CN_6]-K&#160; $ and $&#160; [Co(NH_3)_6]Cl_3-L$ ;&#160;<br/>$Na_3[Co(oxalate)_3]-M $ and&#160; &#160; $&#160; [Ni(H_2O)_6]Cl_2-N$ ;<br/>$K_2[Pt(CN)_4]-O$ and $[Zn(H_2O)_6](NO_3)_2 - P$;<br/>the diamagnetic complexes are:

Question 11 :
The Alsatian-Swiss chemist Alfred Werner pioneered the field of coordination chemistry in the late nineteenth century. At that time, a number of compounds of cobalt (III) chloride with ammonia were known, with general formula&#160;$CoCl_3.xNH_3$ $x=3\ to\ 6$<br/>Treatment of these compounds with aqueous HCl acid did not remove the ammonia. However, treatment of the compounds with excess of $AgNO_3$ at 273 K gave white precipitate of AgCl in varying ratio depending on the structure. Also each complex had electrical conductivity of varying nature.&#160;<br/>There is no reaction of the compound with aqueous HCl indicating that there is no free $NH_3$. Thus, $NH_3$ ligand is bonded to cobalt(III) by________ .<br/>

Question 12 :
Select the correct I.U.P.A.C. name for [(C$_6$H$_5$)$_3$P $Cl$ Pd Cl$_2$ Pd $Cl$(C$_6$H$_5$)$_3$P]&#160;