Online MCQs – Analytical Chemistry – Chemistry 10th

1. Formation of the white precipitate by adding silver nitrate (AgNO₃) in dilute nitric acid (HNO₃) indicates the presence of:

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

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

4. It deals with the identification of elements.

5. It is also known as vibrational spectroscopy.

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

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

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

9. It is a technique used in analytical chemistry for the separation of volatile compounds.

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

11. The ordinary IR region extends from 2.5 pm (wavelength) to:

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

13. The degree of agreement between replicate measurements of the same quantity.

14. It is a measurable factor or boundary which define the performance and quality of analytical methods.

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

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

17. Infrared spectroscopy is an analytical technique introduced in:

18. The sample may be solid, liquid, gas or a __________ in qualitative analysis.

19. The error caused by improper functioning of an instrument is:

20. The analytical chemistry consists of _______ main types of analysis.