Which of the following compounds is NOT present in it's standard state at $25^{\circ} \mathrm{C}$ and 1…

Which of the following compounds is NOT present in it's standard state at $25^{\circ} \mathrm{C}$ and 1 atmosphere pressure?
  1. $\mathrm{CO}_{2(\mathrm{~g})}$
  2. $\mathrm{CaCO}_{3(\mathrm{~s})}$
  3. $\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}_{(\mathrm{l})}$
  4. $\mathrm{H}_{2} \mathrm{O}_{(\mathrm{g})}$

Solution

$\mathrm{H}_{2} \mathrm{O}_{(\mathrm{g})}$ Water at $25^{\circ} \mathrm{C}$ is present in a liquid state.

Asked in: MHT CET 2020 (13 Oct Shift 1)

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