Question

The standard temperature and pressure for measuring the volume of liquids and solids is.
Option A. 20 °C and 700 mmHg.
Option B. 20 °C and 760 mmHg.
Option C. 0 °C and 760 mmHg.

Answer 1

Option B

$20 \degree Celsius$ and $760 \space mm \space Hg$

Various organisations use different standards but IUPAC still uses this.

NIST uses standard temperature at 273.15 K

The standard pressure is same for every organisation that is 760 mm Hg.