ICSE Class 6 Chemistry - Elements, Compounds and Symbols - Test 2 (Intermediate)
1. A piece of aluminium foil is an example of:
A. A mixture
B. A compound
C. An element
2. Carbon dioxide is classified as a compound because it is made of:
A. Two elements chemically combined
B. Only one element
C. Substances mixed by hand
3. Which is the correct symbol for helium?
A. H
B. He
C. Hl
4. Which symbol correctly represents chlorine?
A. C
B. CL
C. Cl
5. The chemical symbol Mg stands for:
A. Magnesium
B. Manganese
C. Mercury
6. Which is the correct symbol of zinc?
A. Z
B. Zn
C. Zc
7. Why are chemical symbols useful?
A. They make elements disappear
B. They show the colour of elements only
C. They represent elements in a short form
8. Chalk mainly contains calcium carbonate. Calcium carbonate is a:
A. Compound
B. Single element
C. Pure gas only
9. A copper wire is mainly made of:
A. Water
B. An element
C. Sugar solution
10. Sugar is best described as a:
A. Metal element
B. Mixture of sand and water
C. Compound
11. Which is the correct symbol for aluminium?
A. Al
B. AL
C. Am
12. Which symbol represents mercury?
A. Me
B. Hg
C. Mr
13. The symbol Pb stands for:
A. Phosphorus
B. Potassium
C. Lead
14. Which is the correct symbol of phosphorus?
A. P
B. Ph
C. Po
15. Hydrogen and oxygen chemically combine to form:
A. Iron
B. Water
C. Gold
16. Which statement is true about compounds?
A. They contain only one kind of element always
B. They are formed only by physical mixing
C. They have properties different from their elements
17. A silver coin contains the element silver. Its symbol is:
A. Ag
B. Si
C. Sv
18. Which chemical symbol is written correctly?
A. mg
B. Mg
C. MG
19. Which of the following is not a mixture?
A. Salt water
B. Soil
C. Sulphur
20. Which statement best describes an element?
A. It cannot be split into simpler substances by ordinary chemical means
B. It is always made by mixing two liquids
C. It always contains salt and water