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Q. 1) Choose the best answer: 1-In EDL small amount of element a) Halide is placed into a quartz tube. Phosphate b) Sulphates c) Nitride d)

Q. 1) Choose the best answer: 1-In EDL small amount of element a) Halide is placed into a quartz tube. Phosphate b) Sulphates c) Nitride d)

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Q. 1) Choose the best answer: (15) is placed into a quartz tube. c) Nitride d) Phosphate 1-In EDL small amount of element a) Halide b) Sulphates 2-Flame is a mixture of a) Reductant and fuel. b) Oxidant c) Acids d) None of the above 3- The absorbance of 3.5X10° M KMNO4 solution is 0.582, when measured in 1.00 cm cell, wi will be the affect of concentration on the molar absorptivity of solution if its concentrati increased up to 7.05X10° M? a) Molar absorptivity will increased b) c) Molar absorptivity will decreased d) Molar absorptivity has certain val Molar absorptivity will remain same. 4- What would be the percent relative error, if the measured value for the particular analysis is 0.115 M and the accepted value is 0.1 M. a) c) 0.15% 0.1304% b) 13.04% d) 15% 5-If the measured value of error are independent of the amount of the sample being analyzed t error will be_ a) Random error b) Constant error c) Proportional error d) None of ther 6-The probability that the true mean lies within a certain interval is termed as_ a) Confidence level b) Gaussian distribution distribution. c)Confidence interval d)Poiss 7-Which of the following statement is true if Qevp is 0.527 and Quritoal is 0.413 at 95% confiden level? a) The outlier must retain in the data set. The outlier must discard from the data set. There is no significant information would be obtained from the test. None of them. 8- What would be the Wave numbers of wave having wavelength 3.125µm? a) 320000 waves/ cm b) 3200 waves/ cm c) 320 waves/ cm d) None of the
Transcribed Image Text:Q. 1) Choose the best answer: (15) is placed into a quartz tube. c) Nitride d) Phosphate 1-In EDL small amount of element a) Halide b) Sulphates 2-Flame is a mixture of a) Reductant and fuel. b) Oxidant c) Acids d) None of the above 3- The absorbance of 3.5X10° M KMNO4 solution is 0.582, when measured in 1.00 cm cell, wi will be the affect of concentration on the molar absorptivity of solution if its concentrati increased up to 7.05X10° M? a) Molar absorptivity will increased b) c) Molar absorptivity will decreased d) Molar absorptivity has certain val Molar absorptivity will remain same. 4- What would be the percent relative error, if the measured value for the particular analysis is 0.115 M and the accepted value is 0.1 M. a) c) 0.15% 0.1304% b) 13.04% d) 15% 5-If the measured value of error are independent of the amount of the sample being analyzed t error will be_ a) Random error b) Constant error c) Proportional error d) None of ther 6-The probability that the true mean lies within a certain interval is termed as_ a) Confidence level b) Gaussian distribution distribution. c)Confidence interval d)Poiss 7-Which of the following statement is true if Qevp is 0.527 and Quritoal is 0.413 at 95% confiden level? a) The outlier must retain in the data set. The outlier must discard from the data set. There is no significant information would be obtained from the test. None of them. 8- What would be the Wave numbers of wave having wavelength 3.125µm? a) 320000 waves/ cm b) 3200 waves/ cm c) 320 waves/ cm d) None of the
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