Phenolphthalein is used to indicate the pH range between :

10-14

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8-10

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4-10

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4-6

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Solution

The correct option is B 8-10
pH indicators are specific to the range of pH values one wishes to observe. For example, common indicators such as phenolphthalein, methyl red, and bromothymol blue are used to indicate pH ranges of about 8 to 10, 4.5 to 6, and 6 to 7.5 accordingly.

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Similar questions

Q. Phenolphthalein indicator is used for the pH range:

Q. Assertion :Phenolphthalein is used as indicator during the titration of oxalic acid against sodium hydroxide. Reason:

p H

range of phenolphthalein is from

8

9.6

For phenolphthalein $p K_{i n}$ = 9.7. The indicator can be used for the pH range of 8.2 to 10. Calculate the $\frac{[I n^{-}]}{[H I n]}$ for the upper and lower limits of the range.

Q. Assertion :In the titration of strong acid and strong base, phenolphthalein is used as suitable indicator. Reason: In the titration of strong acid and strong base, the equivalence point lies is the pH range of

(3.0 - 10.5)

and phenolphthalein have pH range of

(8.0 - 9.8)

Q. Assertion :When

N a_{2} C O_{3}

is titrated against

H C l

in presence of phenolphthalein indicator, it is converted to

N a C l

. Reason: Phenolphthalein shows color change in the

p H

range of

3.5 - 4.6

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Phenolphthalein is used to indicate the pH range between :

The correct option is B 8-10pH indicators are specific to the range of pH values one wishes to observe. For example, common indicators such as phenolphthalein, methyl red, and bromothymol blue are used to indicate pH ranges of about 8 to 10, 4.5 to 6, and 6 to 7.5 accordingly.

The correct option is B 8-10
pH indicators are specific to the range of pH values one wishes to observe. For example, common indicators such as phenolphthalein, methyl red, and bromothymol blue are used to indicate pH ranges of about 8 to 10, 4.5 to 6, and 6 to 7.5 accordingly.