Online MCQs – Analytical Chemistry – Chemistry 10th

1. The Gas is a mobile phase in:

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

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

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

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

6. Infrared spectroscopy is an analytical technique introduced in:

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

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

9. Spectroscopy is the interaction of light with:

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

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

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

13. Flame test of copper halide with bluish-green colour identity the presence of:

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

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

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

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

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

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

20. It is also known as vibrational spectroscopy.