Question 1 :
Graphite is used to prepare crucibles in laboratory as they are _____________.

Question 3 :
In which of the following donation of electrons from filled d-orbitals of metals to empty orbitals of ligand is not observed:

Question 4 :
<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 5 :
<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 7 :
Whichof the following is formed when <i>n</i>-butyllithium reacts with tin (<i></i>II) chloride?

Question 10 :
<span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small"><p class="wysiwyg-text-align-left">Which of the following is not a draw back of&#160;Werner's theory?</p>

Question 11 :
$K_{3}\left [ Al\left ( C_{2}O_{4} \right )_{3} \right ]$ is called:<br/>

Question 13 :
$2.33$g of compound X(empirical formula $CoH_{12}N_4Cl_3)$ upon treatment with excess $AgNO_3$ solution produces $1.435$g of a white precipitate. The primary and secondary valences of cobalt in compound X, respectively, are.<br>[Given : Atomic mass: $Co=59, Cl=35.5, Ag=108$].<br>

Question 14 :
In spectrochemical series, chlorine is above water i.e., $Cl&gt; {H}_{2}O$. This is due to:

Question 17 :
Primary and secondary valency of platinum in the complex $[Pt(en)_{2}Cl_{2}]$ are:

Question 18 :
Which of the following primary and secondary valencies are not correctly marked against the compound?

Question 19 :
Mixture $[X] = 0.02$ mole of $ [Co(NH_3)_5SO_4]Br$ and 0.02 mol of $[Co(NH_3)_5Br]SO_4$ was prepared in 2 litre of solution.<br>1 litre of mixture [X] + excess $AgNO_3 \longrightarrow$ [Y]<br>1 litre of mixture [X] + excess $BaCl_2\longrightarrow$ [Z]<br>No. of moles of [Y] and [Z] are :<br>

Question 21 :
The IUPAC name for the coordination compound&#160;$\displaystyle Ba\left [ BrF_{4} \right ]_{2}$ is:

Question 22 :
Which of the following is correct IUPAC name of any complex compound?

Question 23 :
In the crystal field of the complex $[Fe(Cl)(CN)_4(O)_2)^{4-}$, the electronic configuration of metal is found to be $t_{2g}^{6}$ $e_g^{0}$, then which of the following is/are true about this complex ion?

Question 24 :
The two isomers X and Y with the formula $Cr(H_2O)_5ClBr_2$ were taken for experiment on depression in freezing point. It was found that one mole of X gave depression corresponding to $2$ moles of particles and one mole of Y gave depression due to $3$ moles of particles. The structural formulae of X and Y respectively are:

Question 25 :
The number of&#160;complexes that can be&#160;can be made&#160;with varying $NH_3$ ligands to satisfy primary and secondary valencies of platinum are:<br/><br/>Complex; [$PtCl_4\cdot xNH_3$]&#160; &#160;

Question 26 :
The sum of coordination number and oxidation number of the metal $M$ in the complex $[M{(en)}_{2}({C}_{2}{O}_{4})]Cl$ (where $en$ is ethylenediamine) is :

Question 28 :
A complex whose IUPAC name is not correctly written is :<br>

Question 29 :
When $H_2O$&#160;is shaken with an acidified solution of $K_2Cr_2O_7$&#160;in the presence of ether, the ethereal layer turns blue due to the formation of :

Question 30 :
<br/>(A) When $Fe(CN)_2$ solution is treated with KCN solution, species formed does not give tests of $Fe^{2+}$ and $CN^-$.<br/>(B) When $K_2SO_4$ solution is treated with $Al_2(SO_4)_3$ solution, species formed gives tests of $K^+, Al^{3+}$ and $SO_4^{2-}$.<br/><br/>Species formed in experiment A does not give test of $Fe^{2+}$ and $CN^-$. It is due to formation of________ .