M. Sc. First year Postgraduate degree course
First Semester
CHE - 101
ANALYTICAL CHEMISTRY
Statistical Treatment of analytical data:
Introduction, types of errors, significant figures, precision
and accuracy, methods of expressing accuracy, methods of expressing precision,
the confidence limit, fests of significance the test, the student T test,
rejection of results - the Q test.
Statistics for small data sets, linear least squares, correlation coefficient,
using spreadsheets for plotting calibration curves, slope, intercept and
coefficient of determination, numerical.
Multiple Choice questions:
1. Which of the following is an error that may occur in the measurement of a physical quantity …a) Systematic error
b) Random error
c) Absolute error
d) All of the above
a) Instrumental error
b) Gross error
c) Error due to imperfections
d) All of the above
a) Accurate
b) Precise
c) Suitable
d) Mean
4. What is the reason for the occurrence of systematic errors in an instrument?
a) No use for a long time
b) High use
c) Manufacturing fault
d) Delivery fault
5. How are systematic errors removed usually for an instrument?
a) By replacing it
b) By re-calibrating it
c) By using a repairing service
d) By not using it for some time
6. in 5 experiments with the same objective, the values obtained are very near to each other. These values can be called ____
a) precise
b) Accurate
c) Average
d) Invalid
7.Mesurement that is close to the true value called as
a) Accurate
b) Average
c) Precise
d) Error
a) Instrumental error
b) Operative error
c) Error of method
d) All of the above
a) 10.4
b) 10.8
c) 11.0
d) 11.2
a) For rejection of data
b) For testing of significance
c) For obtaining best fitting line
d) For completion of data
a) For rejection of data
b) For testing of significance
c) For obtaining best fitting line
d) For completion of data
a) F-test
b) Testing of significance
c) Q-Test
d) T-test
a) 0.0187
b) 10.26
c) 10.25
d) 0.223
a) 2.5d rule
b) 4.0d rule
c) Both a and b
More study Material for M.Sc. First Year (First Semester)
CHE-101 Analytical Chemistry
Analytical chemistry unit-1 MCQ
Analytical chemistry unit-2 MCQ
Analytical chemistry unit-3 MCQ
Chromatography mcq Part-1
Chromatography mcq Part-2
Chromatography Mcq Part-3
CHE-104 Physical Chemistry
Chemical dynamics Part-I pdf notes
Chemical dynamics Part-II pdf notes
Surface Chemistry Handwritten notes pdf Part-I
Surface Chemistry Handwritten notes pdf Part-II
Surface Chemistry MCQ
Surface Chemistry Handwritten notes pdf Part-III
CHE-103 Organic Chemistry
Organic Chemistry paper CHE-103; Practice Set (1,2,3) M.Sc. First year
Organic Chemistry paper CHE-103; Practice Set (4) M.Sc. First year
Organic Chemistry paper CHE-103; Practice Set (5) M.Sc. First year
