Acid–Base Titration Practice

Curves, endpoints, and pH indicators. Ideal for board exams and competitive test prep.

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QUESTION NO 01

Phenolphthalein is commonly used as?

Answer: An acid–base indicator

It changes color around pH ~8–10.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 02

Equivalence point is when?

Answer: Stoichiometrically equivalent amounts have reacted

It is the theoretical stoichiometric completion point.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 03

Beer–Lambert law relates absorbance to?

Answer: Concentration and path length

A = εcl for dilute solutions.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 04

Chromatography separates components based on?

Answer: Differential partitioning between phases

Mobile vs stationary phase affinities differ.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 05

Rf value in TLC is?

Answer: Distance spot traveled / distance solvent front traveled

Rf is a relative migration ratio.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 06

A blank in analysis accounts for?

Answer: Background/contamination signals

Blanks correct for reagents and matrix contributions.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 07

Precision describes?

Answer: Reproducibility of results

Precision is scatter; accuracy is closeness to truth.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 08

Accuracy describes?

Answer: Closeness to the true/accepted value

Accurate results are near the correct value.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 09

Gravimetric analysis measures?

Answer: Mass of a product/precipitate

Mass of an isolated form yields analyte amount.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 10

pH meter measures?

Answer: Hydrogen ion activity (approx. pH)

Glass electrodes respond to H⁺ activity.

Shahzad Mahota @shahzad-mahota

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Acid–Base Titration Practice

Phenolphthalein is commonly used as?

Equivalence point is when?

Beer–Lambert law relates absorbance to?

Chromatography separates components based on?

Rf value in TLC is?

A blank in analysis accounts for?

Precision describes?

Accuracy describes?

Gravimetric analysis measures?

pH meter measures?

Published By

Shahzad Mahota

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00

00

00

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Acid–Base Titration Practice

Phenolphthalein is commonly used as?

Explanation

Equivalence point is when?

Explanation

Beer–Lambert law relates absorbance to?

Explanation

Chromatography separates components based on?

Explanation

Rf value in TLC is?

Explanation

A blank in analysis accounts for?

Explanation

Precision describes?

Explanation

Accuracy describes?

Explanation

Gravimetric analysis measures?

Explanation

pH meter measures?

Explanation

Published By

Shahzad Mahota

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00

00

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