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Chemicals
By
Pariksha
@Pariksha
(2)
India
Tweet
December 20, 2006 7:31am CST
Which chemical is present on litmus paper due to which it changes its colour alternatively on contact with acid and a base.
1 response
atulperx
@atulperx
(735)
• India
20 Dec 06
hey i am not teachr and even i dont like chemistry , but answer this .
chemistry baba