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4 votes
During an experiment, an unknown substance gave the following results:

Red litmus paper stayed red
Blue litmus paper turned red
pH paper turned red
This substance is most likely:
ou o
Neutral
Strong acid
Strong base
Weak base​

User Gilian
by
4.9k points

1 Answer

1 vote
Strong acid because of blue litmus paper turning red
User Nirvik Baruah
by
5.2k points