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The suitable indicator for the titration...


The suitable indicator for the titration is

A

Methy`1` orange

B

Bromothymol

C

Methy`1` red

D

All of these

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The correct Answer is:
D
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An acid-base titration consists of the controlled addition of a dissolved base to a dissolved acid (or the reverse). Acid and base react rapidly to neutralize each other. At the equivalence point, equivalents of reacting substances are equal. The pH during a titration changes every time with a drop of titrant added, but the rate of this change varies enormously. A titration curve, graph of pH as a function of the volume of titrant, displays in detail how the pH changes over the course of an acid base titration. Significantly. the pH changes most rapidly near the equivalence point. The exact shape of a titration curve depends on the K_(a) and K_(b) of acid and base The suitable indicator for this titration will be:

What is general criteria of choosing a suitable indicator for a given titration?

Phenolphalein does not act as an indicator for the titration between

There are three acid-base indicators. Methyl orange (end point at pH=4 ), bromothymol blue (end point at pH-7 ), phenolphthalein (end point at pH=9 ). Which is the most suitable indicator for the following titrations? (a). H_2SO_4 with KOH (b). KCn with HCl (c). NH_3 with HNO_3 (d). HF with NaOH

Assertion (A) : Hardness of water is determined by titrating it with disodium salt of EDTA . Reason (R) :The indicator used in the titration is Eriochrome Black -T at pH=10 .

Assertion (A) : Hardness of water is determined by titrating it with disodium salt of EDTA . Reason (R) :The indicator used in the titration is Eriochrome Black -T at pH=10 .

The best indicator for titrating HCl against NH_(4)OH is :

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

Ferric alum is the indicator in the titration of Ag^(o+) with SCN^(Θ) when (a)_____colour appears at the end point .

Statement-1:Phenolphathalein can be used as indicator in the titration of weak acid with NaOH. Statement-2 :Near the end point in the titration of weak acid with NaOH, the pH of the solutions is alkaline due to hydrolysis of anion.

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