MCQ
In $Cu - Zn$ cell
- ✓Reduction occurs at the copper cathode
- BOxidation occurs at the copper cathode
- CReduction occurs at the anode
- DChemical energy is converted to light energy
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The rate determining step of the reaction is

| List $I$ | List $II$ |
| $1E_1\,\,1E_2\,\,1E_3$ | |
| $(A)$ $1510$ $-$ $-$ | $(1)$ $H$ |
| $(B)$ $495$ $6500$ $10200$ | $(2)$ $Li$ |
| $(C)$ $840$ $1630$ $13100$ | $(3)$ $Be$ |
| $(D)$ $600$ $2050$ $3100$ | $(4)$ $B$ |
( $1E$ in $KJ\,mol^{-1}$ )
$(I)$ Ionization energy $(II)$ Ionic radius
$(III)$ Bond energy of the $X_2$ molecule $(IV)$ Enthalpy of vaporisation