MCQ
If $CdI_2$ is pink in colour, the $CdCl_2$ will be ........... coloured.
  • A
    yellow
  • B
    red
  • C
    blue
  • cannot be predicted

Answer

Correct option: D.
cannot be predicted
d
$(d)$ In $CdI_2,$ Pink colour is due to polarization of $I^-$ by $Cd^{2+}$ has  pseudonoble gas configuration. In $CdCl_2,$ extent of polarization of $Cl^-$ by  $Cd^{2+}$ is relatively less, hence specific colour cannot be predicted.

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

For an endothermic reaction, $\Delta H$ represents the enthalpy of the reaction in $KJ\,mol^{-1}.$ The minimum amount of activation energy will be
Bell metal is an alloy of
Consider the following reaction. Which  of the following products is not expected to be formed ?
Three substances $A, B$ and $C$ can react to form $E$ and $D$ as shown $2A + 3B + C \rightarrow  4D + 2E$  If molar masses of  $A,B,C$ and $D$ are $40, 30, 20$ and $15$ respectively and $570\  gm$ of mixture of $A, B$ & $C$ is reacted then maximum mass of $E$ which can be obtained will be ............ $\mathrm{gm}$
Decreasing order of stability of following carbocations is 

$(A)$ $m-CH_3OPhCH_2^+$     $(B)$ $p-CH_3OPhCH_2^+$  $(C)$ $PhCH_2^+$               $(D)$ $p-NO_2PhCH_2^+$

Consider the sulphides $\mathrm{HgS}, \mathrm{PbS}, \mathrm{CuS}, \mathrm{Sb}_{2} \mathrm{~S}_{3}$, $\mathrm{As}_{2} \mathrm{~S}_{3}$ and $\mathrm{CdS}$. Number of these sulphides soluble in $50\, \% \,\mathrm{HNO}_{3}$ is .... .
Calculate the millimoles of $SeO_3^{2-}$ in solution on the basis of following data : $70\,ml$ of $\frac{M}{60}$ solution of $KBrO_3$ was added to $SeO_3^{2-}$ solution. The bromine evolved was removed by boiling and excess of $KBrO_3$ was back titrated with $12.5\, mL$ of $\frac{M}{25}$ solution of $NaAsO_2$. The reactions are given below.

$I.\,SeO_3^{2 - } + BrO_3^ -  + {H^ + } \to SeO_4^{2 - } + B{r_2} + {H_2}O$

$II.\,BrO_3^ -  + AsO_2^ -  + {H_2}O \to B{r^ - } + AsO_4^{3 - } + {H^ + }$

The $IUPAC$ name of (figure) is
Which amongst the following options is the correct relation between change in enthalpy and change in internal energy?
What is the correct order of acidic nature