Please answer correctly ...I will mark you brainliest

Answer:
Ali will need to either taste test or test the drinks on a ph scale. A neutral drink is water, as neutral has a ph of 7. The ph scale ranges from 1 to 14, going from acidic to basic. So if the drink has a ph less than 7, it is acidic, if its more, its basic.
Answer:
Litmus / natural indicators test
Explanation:
Ali should use litmus paper for testing the drinks.
if it turns to Red-acidic
if it turns to blue-basic