Online MCQs – Analytical Chemistry – Chemistry 10th

1. Interaction of matter with radiation energy as a function of wavelength or frequency is called:

2. it is used for specification of functional groups in food products, polymers and industries.

3. Chemical reactions such as precipitation, oxidation or neutralization and measured by:
(i) volumetric, analysis
(ii) gravimetric analysis
(iii) combustion analysis

4. It is a method used in electro-analytical chemistry to find the concentration of solute in solution.

5. It is used to assess the concentration or amount of a given atomic, molecular or ionic chemical.

6. Used in the analysis of pollutants in water, pharmaceutical and drugs, quality control in the food industry and clinical chemistry.

7. Various parameters of validation of any analytical method are:
(i) selectivity & linearity
(ii) range & accuracy
(iii) precision & error

8. The Gas is a mobile phase in:

9. It is the repeatability of a result and is known as the degree of exactness.

10. In acid?base titration if burette is not properly cleaned or rinsed will cause:

11. Electromagnetic radiations lower in energy than visible radiations are called:

12. Infrared spectroscopy is an analytical technique introduced in:

13. It deals with the identification of elements.

14. The wavelength range of ultraviolet and visible spectroscopy is:

15. It is an effective tool for quality control in different industries.

16. An agreement between a measured value and the accepted true value.

17. They are also known as electronic spectroscopy.
(i) Ultraviolet spectroscopy
(ii) infrared spectroscopy
(iii) Visible spectroscopy

18. The identification of elements, ions or compounds present in a sample is called:

19. An indeterminate error caused by variations of the procedure, environmental factors and limitations of instrumentation.

20. The physical methods used to measure physical properties are called: