Grade 8  Chemistry Final Exam
 1.Which one of the following is    basic oxide 
 A.CaO B. MgO C. BaO D. FeO
2. Acids change color of indicator of blue lithmus into
  A. Colorless B. blue C. red D.all
3. One of the following is not hydrocarbone
A.methane B.ethanol C.Hexane D. All
4. Which compound is express about ampoteric oxide 
A.ZnO B.HCl C.HBr D.HI
5. Acids are dissolve by water to rise.....
A. H B. OH  C. N D. Fe
6. The main ore of alumunium is 
A. Corundum B.Alumunium oxide D. none 
7.The chemical formula of table salt is...
 A. NaOH  B. NaCl C.NaH D.all
8. Which one of the following is alkali metal?
 A.Ca B. Na C.Mg D.Ba
9.Which substance manufacture plastics?
 A.buthene B.ethene C.methane D.hexane
10. .......is the only alkaline gas
  A.nitrate B.ammonia C.formaline D.none
11. The commom name of calcium carbonat is.......
 A.gypsum B. limestone C. dolmite .D. none
12.the chemucal formula of hexene is......
A.CH4  B.C6H12  C. C6H10 D. C6H14
13. AN alkane that contain 6 carbon atom is called..
 A. Hexyne B. Hexane C. Hexene D.Heptane
14. Na + Cl ------->---------
 A. NaC  B. NaCl  C. NalC D.all
15. Which acid found in carbatrries?
 A.HCl  B. H2SO4  C. HBr D. all
       
     Chemistry