Quarter 1

1

Robert Boyle emphasized chemistry should be based on:

A Magic B Observation and experiments C Alchemy only D Philosophy

2

A metal higher in electrochemical series is:

A Less reactive B More reactive C Neutral D Non-metal

3

Dalton’s atomic theory helped explain:

A Chemical reactions B Light rays C Sound waves D Magnetism

4

Which material was commonly used by early humans to make tools?

A Plastic B Iron C Stone D Steel

5

Electrochemical series helps to predict:

A Color of metal B Density of metal C Displacement reactions D Melting point

6

The idea that matter is made of tiny particles came from:

A Early philosophers B Modern computers C Industrial revolution D Genetics

7

A battery is a device that:

A Stores electrical energy B Produces heat energy C Consumes electricity D Produces light only

8

According to Dalton, atoms are:

A Divisible B Indestructible C Made of energy D Invisible waves

9

Which property of matter can be measured?

A Taste B Color C Mass D Smell

10

The electrical chemical series arranges elements according to:

A Atomic number B Atomic mass C Standard electrode potential D Valency

11

A change in which only physical appearance changes is called:

A Chemical change B Nuclear change C Physical change D Biological change

12

Which of the following is an example of galvanic cell?

A Electrolysis of water B Daniell cell C Electroplating cell D Fuel cell charger

13

Which yield is always less than or equal to theoretical yield?

A Actual yield B Percentage yield C Limiting yield D Maximum yield

14

A change of state is generally a:

A Chemical change B Nuclear change C Physical change D Biological change

15

Which reactant is present in excess amount?

A Limiting reactant B Non-limiting reactant C Product D Catalyst

16

Which civilization made significant contributions to alchemy?

A Roman B Greek C Islamic D American

17

Which reactant determines the maximum product formation?

A Excess reactant B Limiting reactant C Catalyst D Solvent

18

Fuel cells are widely used in:

A Clocks B Spacecraft C Torches D Radios

19

Matter is defined as anything that has:

A Energy only B Mass and occupies space C Volume only D Shape only

20

The use of fire helped early humans mainly in:

A Writing books B Cooking and metal extraction C Making laws D Developing atomic theory

21

Which book was written by Robert Boyle?

A Principia B The Sceptical Chymist C Book of Alchemy D Elements

22

Which scientist is associated with accurate chemical measurements?

A Dalton B Boyle C Lavoisier D Jabir ibn Hayyan

23

Which quantity relates mass to moles?

A Atomic number B Molar mass C Density D Volume

24

Which property distinguishes solids from liquids?

A Mass B Volume C Shape D Density

25

The main advantage of fuel cells is that they are:

A Polluting B Noisy C Environment friendly D Expensive