1. . Reaction in which a single chemical compound is formed is called:
(A) Addition reaction
(B) Displacement reaction
(C) Redox reaction
(D) Decomposition reaction
2. . Reaction in which the only reactant is a single compound is called:
(A) Addition reaction
(B) Decomposition reaction
(C) Redox reaction
(D) Displacement reaction
3. . Zinc can displace ______ metal:
(A) Na
(B) K
(C) Cu
(D) Mg
4. . Thermal decomposition requires:
(A) Heat
(B) Volume
(C) Pressure
(D) Mass
5. . Chemical composition of a substance changes as a result of:
(A) Physical change
(B) Heating
(C) Chemical reaction
(D) Boiling
6. . Chemical reaction involves:
(A) Physical change
(B) Heating
(C) Boiling
(D) Chemical change
7. . Conversion of chlorine atom into chloride ion is called:
(A) Reduction reaction
(B) Displacement reaction
(C) Oxidation reaction
(D) Addition reaction
8. . Reaction between sodium and water is called:
(A) Addition reaction
(B) Decomposition reaction
(C) Double displacement reaction
(D) Displacement reaction
9. . Rusting of iron is called:
(A) Displacement reaction
(B) Redox reaction
(C) Double displacement reaction
(D) Decomposition reaction
10. . Electron transfer reaction is called:
(A) Double displacement reaction
(B) Displacement reaction
(C) Redox reaction
(D) Decomposition reaction
11. . Conversion of water into hydrogen and oxygen gas is:
(A) Addition reaction
(B) Displacement reaction
(C) Decomposition reaction
(D) Double displacement reaction
12. . Reaction between metal and acid is:
(A) Addition reaction
(B) Double displacement reaction
(C) Displacement reaction
(D) Decomposition reaction
13. . Iodine can displace:
(A) F₂
(B) Cl₂
(C) Br₂
(D) None of these
14. . Fluorine can displace:
(A) I₂
(B) All
(C) Br₂
(D) Cl₂
15. . Metathesis is called:
(A) Addition reaction
(B) Double displacement reaction
(C) Displacement reaction
(D) Decomposition reaction