MCQ
A reversible chemical reaction having two reactants in equilibrium. If the concentrations of the reactants are doubled, then the equilibrium constant will
- AAlso be doubled
- BBe halved
- CBecome one-fourth
- ✓Remain the same
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$(A)$ Emit or absorb energy in the form of electromagnetic radiation
$(B)$ Frequency distribution of the emitted radiation depends on temperature
$(C)$ At a given temperature, intensity vs frequency curve passes through a maximum value
$(D)$ The maximum of the intensity vs frequency curve is at a higher frequency at higher temperature compared to that at lower temperature
$A$. Column chromatography
$B$. Thin layer chromatography
$C$. Paper chromatography
Choose the most appropriate answer from the options given below:
$4H_{(g)} \rightarrow 2H_{2(g)}$ is $-869.6\ kJ$
The dissociation energy of $H - H$ bond is ............ $\mathrm{kJ}$