Instrumental Analysis (NTA-NET (Based on NTA-UGC) Forensic Science (Paper-II)): Questions 1 - 4 of 52

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Question number: 1

» Instrumental Analysis » X- Ray Spectroscopy

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Appeared in Year: 2008

MCQ▾

Question

Fingerprint region of the Infrared spectra lies between: (June)

Choices

Choice (4) Response

a.

4.3 - 6.3 m

b.

2.3 - 5.3 microns

c.

3.7 - 5.4 microns

d.

6.6 - 14 m

Question number: 2

» Instrumental Analysis » Electrophoresis » High and Low Voltage Electrophoresis

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Appeared in Year: 2007

MCQ▾

Question

In high voltage electrophoresis, increasing the voltage applied to the electrophoretic plates extend the seperation capabilities to substance with: (June)

Choices

Choice (4) Response

a.

High molecular weight

b.

Equal molecular weight

c.

Low molecular weight

d.

Question does not provide sufficient data or is vague

Question number: 3

» Instrumental Analysis » Chromatography

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Appeared in Year: 2011

Assertion-Reason▾

Question

Assertion (Ꭺ)

In HPLC, either isocratic or gradient elution may be used as a solvent system

Reason (Ꭱ)

Isocratic solvent systems improve a poor HPLC separation and a gradient solvent system has advantage of speed and simplicity. (December)

Choices

Choice (4) Response

a.

Ꭺ is false but Ꭱ is true

b.

Both Ꭺ and Ꭱ are false

c.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

d.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

Question number: 4

» Instrumental Analysis » Chromatography

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Appeared in Year: 2013

MCQ▾

Question

A carrier gas in GLC should have the following characteristics except: (June)

Choices

Choice (4) Response

a.

It should not cause explosion of gas

b.

It should be easily available

c.

It should be mixtures of gas

d.

It should be inert