1.

The test-tube I contains sodium bicarbonate soultion whereas test-tube II contains lemon juice. On introducing pH paper strips in both the solutions, it is observed that the pH paper turns :(1) red in I and blue in II(2) blue in both (3) blue in I and red in II(4) red in I and pink in II

Answer» The test-tube I contains sodium bicarbonate soultion whereas test-tube II contains lemon juice. On introducing pH paper strips in both the solutions, it is observed that the pH paper turns :

(1) red in I and blue in II

(2) blue in both

(3) blue in I and red in II

(4) red in I and pink in II


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