Single Choice

In the titration of strong acid and weak base, the indicator used is:

Athymol blue
Bphenolphthalein
Cthymolphthalein
Dmethyl orange
Correct Answer

Solution

In the titration of the strong acid and weak base, the indicator used is Methyl orange.
Methyl Orange is an indicator that is used to indicate the equivalence point of the $$acid-base$$ titration. In the acidic environment, it turns red and in the basic environment, or $$pH$$ of $$4.4$$ and higher, it turns yellow. It is prepared by treatment of helianthin with sodium hydroxide, helianthin is obtained by coupling diazotized sulphanilic acid with $$N, N-dimethylaniline$$.

SIMILAR QUESTIONS

Acids, Bases and Salts

In the titration of $$NaOH$$ and $$HCl$$, which of the following indicator will be used?

Acids, Bases and Salts

Two solutions X and Y are tested with universal indicator. Solution X turns orange whereas solution Y turns red. Which of the solutions is a stronger acid?

Acids, Bases and Salts

Which of the following indicator is most suitable for titration of $$HB$$ with strong base

Acids, Bases and Salts

The best indicator for the detection of endpoint in the titration of a weak acid and a strong base is:

Acids, Bases and Salts

A solution containing $$Fe^{2+}$$ ions is titrated with $$KMnO_{4}$$ solution. Indicator used will be:

Acids, Bases and Salts

0.1 N solution of $${ Na }_{ 2 }{ CO }_{ 3 }$$ is titrated with 0.1 N HCl, best indicator is :

Acids, Bases and Salts

A solution containing $$Na_{2}CO_{3}$$ and $$NaOH$$ requires $$300\ mL$$ of $$0.1\ N\ HCl$$ using phenolphthalein as an indicator. Methyl orange is then added to the above-titrated solution when a further $$25\ mL$$ of $$0.2\ N\ HCl$$ is required. The amount of $$NaOH$$ present in the original solution is:

Acids, Bases and Salts

A solution containing $$Fe^{2+}$$ ions is titrated with $$KMnO_{4}$$ solution. Indicator used will be:

Acids, Bases and Salts

The indicator used in iodometric titrations is:.

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