Use the following data: pK_a of H2CO3 6.4, benzoic acid 4.20, phenol 10.0, ethanol 15.9, H2O 15.7, NH3 38. Which statements are correct?

Benzoic acid reacts with aqueous NaHCO3 with log K > 0, liberating CO2.

Ethanol is converted essentially completely into sodium ethoxide by NaNH2.

Phenol is converted essentially completely into sodium phenoxide by aqueous NaOH (log K = 5.7).

Benzoic acid reacts with aqueous NaHCO3 with log K > 0, liberating CO2.

Phenol dissolves completely in aqueous NaHCO3 as sodium phenoxide.

Ethanol is converted essentially completely into sodium ethoxide by NaNH2.

Phenol is converted essentially completely into sodium phenoxide by aqueous NaOH (log K = 5.7).

JEE Advanced levelOne or more correct optionsDifficulty 3 of 3g2126

Use the following data: $p K_{a}$ of $H X_{2} CO X_{3}$ 6.4, benzoic acid 4.20, phenol 10.0, ethanol 15.9, $H X_{2} O$ 15.7, $NH X_{3}$ 38. Which statements are correct?

ABenzoic acid reacts with aqueous $NaHCO X_{3}$ with $lo g K > 0$ , liberating $CO X_{2}$ .
BPhenol dissolves completely in aqueous $NaHCO X_{3}$ as sodium phenoxide.
CEthanol is converted essentially completely into sodium ethoxide by $NaNH X_{2}$ .
DPhenol is converted essentially completely into sodium phenoxide by aqueous $NaOH$ ( $lo g K = 5.7$ ).

lo g K = 6.4 - 4.20 = 2.2 > 0

, true. B:

lo g K = 6.4 - 10.0 = - 3.6

, so phenol does not dissolve in bicarbonate; false. C:

lo g K = 38 - 15.9 = 22.1

, essentially complete; true. D:

lo g K = 15.7 - 10.0 = 5.7

; true.