Cochin University of Science and Techology (CUST) 2007-3rd Sem M.Sc Chemistry IN APPLIED2OO7 CHE 2301 INSTRUMENTAL METHODS OF ANALYSIS - Question Paper

Tuesday, 28 May 2013 01:05Web

Page 1 of 2

y[ou~> t/L CzrjVU

AC.3/07.1

M.Sc. DEGREE III SEMESTER EXAMINATION IN APPLIED CHEMISTRY, NOVEMBER 2007 CHE 2301 INSTRUMENTAL METHODS OF ANALYSIS

Time: 3 Hours Maximum marks : 50

SECTION - A

(Answer ALL questions. All questions carry EQUAL marks)

(5x2= 10)

I. (1) What is a rectifier? Give a full-wave rectifier circuit.

(2) Differentiate between primary and secondary coulometers.

(3) Give the principle of cyclic voltametry.

(4) Explain the advantages of double beam spectrophotometer over the single beam instrument. '

(5) What are hyphenated techniques? Illustrate with an example.

SECTION - B

(Answer ALL questions. All questions carry EQUAL marks)

(8x5 + 40)

II. A. Give the principle, types, mechanism of amplification and application of

transistors.

OR

B. Explain noise-to-signal ration. Explain the working and application of a cathode ray tube.

m. A. Discuss the principle and application of conductometric titrations.

OR

B. Give an account of the principle and application of electrogravimtry.

IV. A. Explain the principle and instrumentation of polarography.

OR

B. Write short notes on (i) Chronopotentiometry and (ii) Amperometric titrations.

V. A. Discuss the principle and application of UV-visible spectrophotometer.

OR

B. Explain the fundamental laws of photometry. Explain photometric accuracy and relative photometric error.

VI. A. Give the instrumentation and application of FT-NMR.

OR

B. Discuss the principle and application of advanced mass spectrometry.

(Turn over)

VII	A.	Give the instrumentation and application of AAS. OR
	B.	Discuss the atomizers used in spectroscopy
VIIL	A.	Write the principle and application of ion scattering spectrometry, OR
	B.	Describe the instrumentation and application of ESC A.
IX.	A.	Discuss the various aspects including the advantages of automation in chemical analysis. OR
	B.	Discuss the principle and application of flow injection analysis.

***

/

Attachment:

( 0 Votes )

Earning: Approval pending.