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21 votes
21 votes
Which of the following changes different colours in alkalis,acids,and neutral substances?

A red litmus paper
B Blue litmus paper
C universal indicator
D all of the above​

User Ashok Rathod
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2 Answers

13 votes
13 votes
B I think if not it’s for sure a
User Meugiwara
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3.2k points
23 votes
23 votes
A and B I think we did some experiments in chemistry but I don’t remember.
User Asif Rahaman
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3.1k points