MCQ
The rate constant of a reaction depends upon
- AExtent of reaction
- BTime of reaction
- ✓Temperature of the system
- DConcentration of the system
Rate constant $K= A_e^{ - {E_a}/RT}$,
Hence rate constant depends only upon temperature of the system.
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$A$. They exhibit high enthalpy of atomization as the d-subshell is full.
$B$. $\mathrm{Zn}$ and $\mathrm{Cd}$ do not show variable oxidation state while $\mathrm{Hg}$ shows $+\mathrm{I}$ and + $II.$
$C$. Compounds of $\mathrm{Zn}, \mathrm{Cd}$ and $\mathrm{Hg}$ are paramagnetic in nature.
$D$. $\mathrm{Zn}, \mathrm{Cd}$ and $\mathrm{Hg}$ are called soft metals.
Choose the most appropriate from the options given below:



