ICSE Class 6 Chemistry - Elements, Compounds and Symbols - Test 1 (Basic)
1. An element is a substance made of:
A. Many mixtures
B. One kind of matter
C. Only water
2. Which of the following is an element?
A. Iron
B. Salt water
C. Lemon juice
3. A compound is formed by the chemical combination of:
A. Only one element
B. Two mixtures only
C. Two or more elements
4. Which of the following is a compound?
A. Gold
B. Water
C. Copper
5. A chemical symbol is used to represent:
A. An element
B. A school bag
C. A laboratory table
6. What is the symbol of hydrogen?
A. Hy
B. Hg
C. H
7. What is the symbol of oxygen?
A. Ox
B. O
C. Om
8. Which symbol represents carbon?
A. C
B. Ca
C. Co
9. Which is the correct symbol of nitrogen?
A. Ni
B. Ng
C. N
10. The symbol S stands for:
A. Sodium
B. Sulphur
C. Silver
11. Which is the correct symbol of calcium?
A. Ca
B. CA
C. ca
12. What is the symbol of sodium?
A. S
B. So
C. Na
13. Which symbol represents potassium?
A. P
B. K
C. Po
14. What is the chemical symbol of iron?
A. Fe
B. Ir
C. I
15. Which is the correct symbol of copper?
A. Co
B. Cp
C. Cu
16. The symbol Au stands for:
A. Aluminium
B. Gold
C. Argon
17. Which symbol represents silver?
A. Ag
B. Si
C. S
18. Which is the correct way to write a two-letter chemical symbol?
A. Both letters small
B. Both letters capital
C. First capital, second small
19. Which one is not a compound?
A. Water
B. Oxygen
C. Common salt
20. Common salt is classified as a:
A. Compound
B. Single element
C. Type of gas only