Chemistry Quiz 34 (25 MCQs)

Quiz Instructions:

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1. What is a metalloid?

2. What among following is used to produce artificial rain?

3. Which biomolecule has sugars and starches?

4. The breakdown of water into hydrogen and oxygen is

5. What is the group and period of the element sodium?

6. An ionic bond is formed by

7. Creature with only one cell

8. Taking Avogadro's number as 6.0 x 1023, what is the number of particles in 9 grams of H2O?

9. In any chemical reaction, the quantities that are preserved are the _____

10. Which element is present in all life forms?

11. Capillary action involves

12. What biologist call the large moelcules that make up the "big 4"

13. The monomer of polythene is

14. Avogadro's number is

15. A physical change where the substance undergoes changes without changing its chemical composition

16. Which element is located on the Periodic Table with other metals, but is a gas at room temperature

17. Increasing numbers on the periodic table indicate _____

18. In a graduated cylinder containing several liquid layers, the least dense liquid is found

19. To change from moles of a given substance, to moles of the substance sought, one uses the _____

20. The nuclear particles which are assumed to hold the nucleons together are?

21. Area or sphere is referred as _____

22. If an atom is located in the 1st column of the periodic table, then a neutral atom has

23. Which compound has the most atoms?

24. Sugars are converted in the liver into

25. A _____ is the smallest chemical unit of matter. When these units all have the same number of protons, they are the same _____