Pharmaceutical Analysis Test 2

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| By Anilkumarpharmac

Anilkumarpharmac

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Quizzes Created: 2 | Total Attempts: 14,200

| Attempts: 4,510

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1/6 Questions

In which of the following titration “oxidation-reduction ‘(Redox) step can be expected
- Acid-base titrations
- Ceriometry
- Gay-lussac method
- Aquametry.
- Kjeldhal titration

About This Quiz

This 'pharmaceutical analysis test 2' assesses knowledge in analytical chemistry techniques, focusing on titration, volumetry, and spectroscopy. It evaluates understanding of key concepts such as redox reactions in ceriometry, gasometry, and the principles behind polarimetry and NMR & ESR.

2.

which of the following is volumetry
- Potentiometry
- Voltametry
- Gravy metry
- Gasometry
- Amperometry
Correct Answer

A. Gasometry

Explanation

Gasometry is the correct answer because it refers to the measurement of the volume or quantity of gases. Potentiometry, voltametry, gravy metry, and amperometry are not related to the measurement of gas volume.

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2
3.

Formality is a term for expressing the concentration and used in
- spectrophotometric reactions
- acid-base reactions
- argentometric reactions
- precipitation reactions
- Redox titrations
Correct Answer

A. precipitation reactions

Explanation

Formality is a term used to express the concentration in various types of reactions. In this case, it is specifically used in precipitation reactions. Precipitation reactions involve the formation of a solid product from the reaction of two aqueous solutions. The formality of a solution in a precipitation reaction refers to the number of formula units of the solute present in one liter of the solution. Therefore, the correct answer is precipitation reactions.

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4.

Saccharimetry is the practical application of
- Acidimetry
- Alkalimetry
- Potetiometry
- Polarimetry
- Aquametry
Correct Answer

A. Polarimetry

Explanation

Polarimetry is the practical application of saccharimetry. Polarimetry is a technique used to measure the rotation of plane-polarized light as it passes through a sample. In saccharimetry, polarimetry is used to determine the concentration of sugar in a solution by measuring the rotation of polarized light caused by the presence of sugar molecules. Therefore, polarimetry is the correct answer as it directly relates to saccharimetry and its practical application.

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2
5.

CO₂ not identified by IR spectroscopy it’s due to
- CO2 has no dipole moment although C=O is polar
- CO2 has no dipole moment since C=O is non-polar
- Optical activity of the system
- Both (a) and (c
- Both (b) and (c)
Correct Answer

A. CO2 has no dipole moment although C=O is polar

Explanation

The correct answer is "CO2 has no dipole moment although C=O is polar." This is because although the C=O bond in CO2 is polar due to the difference in electronegativity between carbon and oxygen, the molecule as a whole is linear and symmetrical, resulting in the dipole moments of the two C=O bonds canceling each other out. As a result, CO2 does not have a net dipole moment and cannot be identified by IR spectroscopy, which relies on the detection of molecular vibrations associated with a changing dipole moment.

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6.

Absorption of a radiation is a measurement in
- NMR & ESR
- Flame photometry
- Radiometric method
- Raman spectroscopy.
- None
Correct Answer

A. NMR & ESR

Explanation

NMR (Nuclear Magnetic Resonance) and ESR (Electron Spin Resonance) are spectroscopic techniques that involve the absorption of radiation. NMR is used to study the interaction of atomic nuclei with an applied magnetic field, while ESR is used to study the interaction of unpaired electrons with a magnetic field. Both techniques rely on the absorption of specific frequencies of radiation by the sample being analyzed. Therefore, NMR & ESR is the correct answer as both methods involve the absorption of radiation.

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3

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Mar 22, 2023

Quiz Edited by
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May 18, 2010

Quiz Created by
Anilkumarpharmac

Pharmaceutical Analysis Test 2

In which of the following titration “oxidation-reduction ‘(Redox) step can be expected

Quiz Preview

which of the following is volumetry

Formality is a term for expressing the concentration and used in

Saccharimetry is the practical application of

CO2 not identified by IR spectroscopy it’s due to

Absorption of a radiation is a measurement in

CO₂ not identified by IR spectroscopy it’s due to