Introduction to Chemistry - SS1 Chemistry Past Questions and Answers - page 1
What is chemistry?
The study of living organisms
The study of matter and its properties
The study of celestial bodies
Share this question
Why is chemistry important?
It helps us understand the universe and its origins
It enables us to develop new medicines and treatments
It allows us to understand and control chemical reactions
All of the above
Share this question
Which of the following is NOT a branch of chemistry?
Biology
Physical chemistry
Analytical Chemistry
Organic chemistry
Share this question
What is the basic unit of matter?
Atom
Cell
Element
Molecule
Share this question
Which of the following is an example of a chemical change?
Melting ice
Cutting paper
Boiling water
Burning wood
Share this question
What is the chemical symbol for oxygen?
O
H
AU
C
Share this question
What is the pH scale used to measure?
Temperature
Acidity or alkalinity
Density
Pressure
Share this question
Which subatomic particle has a positive charge?
Proton
Neutron
Electron
Ion
Share this question
What is the chemical formula for water?
H2O2
CO2
H2O
CH4
Share this question
What is the process of combining elements to form new substances called?
Sublimation
Condensation
Combustion
Chemical reaction
Share this question