MCQ
When initial concentration of a reactant is doubled in a reaction, its half-life period is not affected. The order of the reaction is
- Asecond
- Bmore than zero but less than first
- Czero
- ✓first.
$T_{1 / 2}=\frac{\ln \,2}{k}$
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Product obtained in the above reaction is

$Zn(s) + N{i^{2 + }}(a = 1.0)$ $\rightleftharpoons$ $Z{n^{2 + }}(a = 10) + Ni(s)$ occurs, is found to be $0.5105\,V$ at $298\,K$. The standard e.m.f. of the cell is ............ $\mathrm{V}$
If $(n=4)$ then di-carboxylic acid. would be known as