MCQ
If compound $MX_4$ is non-polar without lone pair at central atom than bond angle $ < XMX$ in compound may be
- A$90^o$
- B$180^o$
- ✓$109^o28'$
- DAll
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If $E_{op}^o$ for this electrode is $1.30\,volt$ then what will be the oxidation electrode potential at $pH = 3$ ? .............. $\mathrm{volt}$

$C_2H_5OH_{(l)}+{3O_2} _{(g)} \rightarrow 2{CO_2} _{(g)}+3{H_2O}_{(l)}$
the amount of heat produced as measured in bomb calorimeter, is $1364.47\, kJ\, mol^{-1}$ at $25\,^oC.$ Assuming ideality the enthalpy of combustion, $\Delta_CH,$ for the reaction will be : $(R = 8.314\,kJ \,mol^{-1})$ .....$kJ\, mol^{-1}$