MCQ
The $pH$ of $1\,\,N\,\,{H_2}O$ is
- ✓$7$
- B$>7$
- C$<7$
- D$0$
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Internal energy $(U)$; Volume $(V)$; Heat $(q)$; Enthalpy $( H )$

$\mathrm{A}_{2}(\mathrm{g})+\mathrm{B}_{2}(\mathrm{g}) \rightleftharpoons \mathrm{X}_{2}(\mathrm{g}) \Delta_{r} \mathrm{H}=-\mathrm{X} \mathrm{kJ} ?$