IOM 2021, Блиц — Задача 12
The Blitz-contest of IOM-2021
Условие
Which of the following statements is not true for hydrochloric and formic acids?
- Formic acid is weaker.
- During the dilution of their 0.1 mol/L solutions, the degree of dissociation of hydrogen chloride practically does not change, but that of formic acid increases.
- 100 mL of each solution with the same pH value are neutralized by the same volume of a 0.1 mol/L sodium hydroxide solution.
- pH of the 0.1 mol/L solution of formic acid is higher than that of the 0.1 mol/L solution of hydrochloric acid.
- Lime stone can be dissolved by both acids.
Отговори
C
Answer key: C — the third option (neutralization of 100 mL of each solution with the same pH).
Решение
Chemistry(6). Answer: C
Оригинал в Архива: iom-2021-blitz-tasks-eng.pdf · официални решения: iom-2021-blitz-answers-eng.pdf