MCQ
The concentration of hydrogen ion $[{H^ + }]$ in $0.01 \,M$ $HCl$ is
- A${10^{12}}$
- ✓${10^{ - 2}}$
- C${10^{ - 1}}$
- D${10^{ - 12}}$
$HCl⇌ {H^ + } + C{l^ - }$.
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$CaCO _3( s ) \rightleftharpoons CaO ( s )+ CO _2( g )$
For this equilibrium, the correct statement(s) is (are)
$(A)$ $\Delta H$ is dependent on $T$
$(B)$ $K$ is independent of the initial amount of $CaCO _3$
$(C)$ $K$ is dependent on the pressure of $CO _2$ at a given $T$
$(D)$ $\Delta H$ is independent of the catalyst, if any