Online MCQs – Analytical Chemistry – Chemistry 10th

1. The Gas is a mobile phase in:

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

3. Infrared spectroscopy is an analytical technique introduced in:

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

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

6. The determination of how much amount or quantity of one or more substances present in a compound or sample is called:

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

8. Analysis deals with the identification of the presence of functional groups in compounds is:

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

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

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

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

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

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

15. It is also known as vibrational spectroscopy.

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

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

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

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

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