MCQ
When ${I_2}$ is dissolved in $CC{l_4}$, the colour that results is
- ABrown
- ✓Violet
- CColourless
- DBluish green
$CC{l_4} + {I_2}\, \to $ Violet colour
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(image) $+ NaNO_2+HCl \rightarrow $ product
Reason : $H_2N-NH_2$ is a chelating ligand.
| Column I | Column II |
| (a) Hypertonic | (i) NaCl. |
| (b) Hypotonic | (ii) Solution having higher osmotic pressure than other solution. |
| (c) Isotonic | (iii) Solution having lower osmotic pressure than other solution. |
| (d) Electrolyte | (iv) Solutions having same osmotic pressure. |
$H_{2(g)} + 2ICl_{(g)} \rightarrow 2HCl_{(g)} + I_{2(g)}$
This reaction is of first order with respect to $H_{2(g)}$ and $ICl_{(g)},$
following mechanisms were proposed.
Mechanism $A\, :$
$H_{2(g)} + 2ICl_{(g)} \rightarrow 2HCl_{(g)} + I_{2(g)}$
Mechanism $B\, :$
$H_{2(g)} + ICl_{(g)} \rightarrow HCl_{(g)} + HI_{(g)}\, ;$ slow
$HI_{(g)} + ICl_{(g)} \rightarrow HCl_{(g)} + I_{2(g)} \,;$ fast
Which of the above mechanism(s) can beconsistent with the given information about the reaction ?