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During the titration of a mixture of Na(...

During the titration of a mixture of `Na_(2)CO_(3)` and `NaHCO_(3)` against HCl

A

phenolphthalein is used to detect the first end point

B

phenophthalein is used to detect the second end point

C

methyl orange is used to detect the first end point.

D

methyl red is used to detect the first end point

Text Solution

Verified by Experts

The correct Answer is:
A
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