Question

F. Pick the correct answer.

​1. Chemical substances are represented by

a. Formula b. Symbols c. Reaction d. None

2. New substances are formed when two or more substances combine

a. Combination reaction b. Decomposition reaction c. Neutralisation reaction d. None

3. Two or more substances mixed together in any ratio

a. Element b. Compound c. Products d. Reactants

4. New substances formed after a chemical reaction

a. Products b. Reactants c. Mixture d. None

5. Reaction in which more than one product is obtained

a. Displacement b. Decomposition c. Combination d. None

6. Substances undergoing change in a chemical reaction

a. Products b. Reactants c. Mixtures d. None

7. Charged particles are called

a. Ions b. Atoms c. Molecules d. All of above





8. Acid reacts with a base in a

a. Combination reaction b. Neutralisation reaction c. Decomposition reaction d. None

9. Chemical composition of the substance is given by

a. Chemical formula b. Symbol c. Element d. All of these

10. Pure substances are

a. Elements b. Compounds c. a & b d. Mixtures

Answer 1

Answer:

1.b

2.a

3./

4.a

5./

6.b

7./

8.b

9./

10.c