Inorganic Chemistry Elements of Biological Importance Online Quiz Test MCQs

Provided below on this page is a free online quiz which includes questions and answers about the topic of elements of Biological importance. Our online tests can be used as a guide for preparation of various general knowledge written exams with ease.

Inorganic Chemistry Elements of Biological Importance Online Quiz Test MCQs


1. Which element of group IV-A does not use d-orbital?

Question 1 of 15

2. What are non-metals?

Question 2 of 15

3. Laughing gas is chemically:

Question 3 of 15

4. Water contains oxygen about:

Question 4 of 15

5. Silica contains oxygen by weight:

Question 5 of 15

6. Calcium carbonate contains oxygen.

Question 6 of 15

7. Which is an inert gas?

Question 7 of 15

8. Which property of oxygen resembles with sulphur?

Question 8 of 15

9. Oxidation of NO in air produces:

Question 9 of 15

10. The brown gas formed when metal reduces HNO₃ is:

Question 10 of 15

11. Out of all the elements of group V-A, the highest ionization energy is possessed by:

Question 11 of 15

12. Oxygen is present in atmosphere about:

Question 12 of 15

13. Among group V-A elements, the most electronegative element is:

Question 13 of 15

14. Nitrogen is present in atmosphere.

Question 14 of 15

15. Which property is not present in non-metals?

Question 15 of 15


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  1. Why N is the correct option in those MCQS related to periodic table and in two of the MCQS,N is the correct option but group number of periodic table is 4-A and 5-A

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