MCQ
Optical activity is shown by
- AGlucose
- BFructose
- CSucrose
- ✓All of these
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$N{O_2} + {F_2}\xrightarrow{{slow}}N{O_2}F + F$
$N{O_2} + F\xrightarrow{{fast}}N{O_2}F$
Thus rate expression of the above reaction can be written as
|
Exp. |
$[A]_0$ |
$[B]_0$ |
Initial rate |
|
$(1)$ |
$0.012$ |
$0.035$ |
$0.10$ |
|
$(2)$ |
$0.024$ |
$0.070$ |
$0.80$ |
|
$(3)$ |
$0.024$ |
$0.035$ |
$0.10$ |
|
$(4)$ |
$0.012$ |
$0.070$ |
$0.80$ |
Reason : Grignard reagents react with hydroxyl group
$(I)$ $ZnCl_2$ is ionic whereas $CdCl_2$ and $HgCl_2$ are covalent
$(II)$ $Zn$ and $Cd$ dissolves in dilute acid $(HCl)$ liberating $H_2$ but $Hg$ can not
$(III)$ $Zn$ and $Cd$ forming with ppt. of $Zn(OH)_2$ and $Cd(OH)_2$ but $Hg$ forms coloured ppt. of
$(IV)$ all from $A_2^{2+}$ type ion