MCQ
Which one of the following ions is colourless
- ✓$C{u^ + }$
- B$C{o^{2 + }}$
- C$N{i^{2 + }}$
- D$F{e^{3 + }}$
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$\mathrm{A} \stackrel{700 \mathrm{K}}{\rightarrow}$ Product
$\mathrm{A}\xrightarrow[\text { catalyst }]{500 \mathrm{K}} $ Product
it was found that $\mathrm{E}_{\mathrm{a}}$ is decreased by $30 \;\mathrm{kJ} / \mathrm{mol}$ in the presence of catalyst.
If the rate remains unchanged, the activation energy for catalysed reaction is (Assume pre exponential factor is same $):$
| List $I$ (Compounds) | List $II$ (Reactions) |
| $A.$ $CH_3(CH_2)_3NH_2$ | $(i)$ Alkaline hydrolysis |
| $B.$ $CH_3C\equiv\,\,CH$ | $(ii)$ With KOH (alcohol) and $CHCl_3$ produces bad smell |
| $C.$ $CH_3CH_2COOCH_3$ | $(iii)$ Gives white ppt.with ammoniacal $AgNO_3$ |
| $D.$ $CH_3CH(OH)CH_3$ | $(iv)$ With Lucas reagent cloudiness appears after $5$ minutes |