Online MCQs – Analytical Chemistry – Chemistry 10th

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

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

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

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

5. The Gas is a mobile phase in:

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

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

8. It deals with the identification of elements.

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

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

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

12. It is also known as vibrational spectroscopy.

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

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

15. It is not dependent on precisions.

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

17. It is the modern analytical technique which is used for the separation of compounds.

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

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

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