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Test tube 'P' contain NaHCO3 solution. T...

Test tube 'P' contain `NaHCO_3` solution. Test tube 'Q' contain lemon juice. On introducing pH paper strips on both of them it is observed that the pH paper turns.

A

Blue in P and Red in Q

B

Red in P and Pink in Q

C

Red in P and Blue in Q

D

Blue in both

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