Which solution has a higher concentration of HYDROXIDE ions (-OH) in solution? acid solution
water
basic solution
aqueous solution

acid solution

Explanation:

Explain the characterization of aqueous solutions as acidic, basic, or neutral ... concentrations of hydronium and hydroxide ions; acidic if it contains a greater ... 10−14 at 40 °C. Calculate [H3O+], [OH−], pH, and pOH for pure water at 40 °C.

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be

water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.