MCQ
Amongst the following electrodes the one with zero electrode potential is
- ACalomel electrode
- ✓Standard hydrogen electrode
- CGlass electrode
- DGas electrode
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Half-life does not depend on the concentration of the reactant. After $10 \,\min,$ volume of $N_2$ gas is $20\, L$ and after the completion of reaction, it is $100\, L$. Hence, rate constant is :- 
$A\,\xrightarrow[{1200\,\,atm}]{{470\,\,K}}B$
$A\,\xrightarrow[{C{O_2}\, - \,atm}]{{570\,\,K}}C$