Test Imat 2019-2020: quiz di Chimica

Domande ufficiali di Chimica proposte dal Miur al test IMAT 2019-2020

Domanda 2 di 12

A few drops of universal indicator solution were added to exactly 50 mL of sodium hydroxide solution, NaOH, of concentration 1 mol / L. Exactly 50 mL of hydrochloric acid, HCl , of concentration 1 mol / L, was added drop by drop to the sodium hydroxide solution containing the universal indicator solution.

What colour changes would be observed as the hydrochloric acid was added?