Download App

5. Co-ordination chemistry — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistry5. Co-ordination chemistry1 Mark
MCQ
Cobalt $(III)$ chloride forms several octahedral complexes with ammonia. Which of the following will not give test for chloride ions with silver nitrate at $25\,^o C$ ?
  • A
    $CoCl_3 \cdot 5NH_3$
  • B
    $CoCl_3 \cdot  6NH_3$
  • ✓
    $CoCl_3 \cdot  3NH_3$
  • D
    $CoCl_3 \cdot  4NH_3$
✓

Answer

Correct option: C.
$CoCl_3 \cdot  3NH_3$
c
Octahedral complex means it contains '$6$' coordinate bond. In $\mathrm{CoCl}_{3} \cdot 3 \mathrm{NH}_{3}, \mathrm{Cl}$ cannot be outside from coordination sphere

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

Explore more

More "M.C.Q (1 Marks)" from 5. Co-ordination chemistry→5. Co-ordination chemistry — all question types→Chemistry STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

Hydrolysis of an ester gives acid $A$ and alcohol $B$. $A$ reduces Fehling solution and oxidation of $B$ gives $A$. The ester is
→
Which of the following outer orbital complex has maximum number of unpaired electron
→
Calculate the amount of water evaporated if $2.8\ kg$ of $2\ m\ CaBr_2$ solution is heated to $110\,^o\ C$ at $1\ atm$ .......... $gm$

(Given : $K_b$ of water $=0.5\ Kkg/mol$ . ; Atomic mass of $Ca =40$ , $Br =80$)

→
Among the following compounds, which one is found in $RNA$ ?
→
Interstitial compounds are formed by
→
Which one of the following is incorrectly matched ?
→
When a copper voltameter is connected with a battery of $e.m.f.$ $12\, volts$. $2\, gm$ of copper is deposited in $30$ minutes. If the same voltameter is connected across a $6 \,volt$ battery, then the mass of copper deposited in $45$ minutes would be ............. $\mathrm{gm}$
→
Consider the cell whose $emf$ is $1.01\, V$.

$\mathop {{H_2}(Pt)}\limits_{1\,atm} \left| {\begin{array}{*{20}{c}}
{H_{aq}^ + }\\
{pH = 4}
\end{array}} \right|\left| {\begin{array}{*{20}{c}}
{A{g^ + }}\\
{xM}
\end{array}} \right|\begin{array}{*{20}{c}}
{Ag}\\
{}
\end{array}$

What is the value of $x$ ? ........... $\mathrm{M}$

( give : $E_{A{g^ + }|Ag}^o = + 0.8$   $\frac{{2.303\,RT}}{F} = 0.06 $)

→
Product; Identify the product
→
The Gibbs energy for the decomposition of $Al_2O_3$ at $500\,^oC$ is as follows

$\frac{2}{3}A{l_2}{O_3} \to \frac{4}{3}Al + {O_2},{\Delta _r}G =  + 940\,kJ\,mo{l^{ - 1}}$

The potential difference needed for the electrolytic reduction of aluminium oxide ............... $\mathrm{V}$

→