Basic Chemistry

Question 1

Which one of the following acids is most abundant in fats and oils from plants and animals?

Accepted Answer

stearic acid

Question 2

Chemistry is the study of:

Accepted Answer

the composition of substances and their effects on one another

Question 3

The branch of chemistry that deals with compounds containing carbon is:

Accepted Answer

organic chemistry

Question 4

Oil and fat combined together in a cream form is an example of:

Accepted Answer

a mixture

Question 5

The basic unit of matter is the:

Accepted Answer

atom

Question 6

The chemical symbol for sodium is:

Accepted Answer

Na

Question 7

The valency of oxygen is:

Accepted Answer

2

Question 8

An atom is electrically neutral because it has:

Accepted Answer

has the same number of protons and electrons

Question 9

The chemical symbol for iron is:

Accepted Answer

Fe

Question 10

Which one of the following is an ionic compound?

Accepted Answer

sodium hydroxide

Question 11

Which one of the following is not a compound?

Accepted Answer

air

Question 12

Matter is defined as anything that:

Accepted Answer

occupies space

Question 13

Which of the following chemicals consists mainly of hydrocarbons?

Accepted Answer

mineral oil

Question 14

Organic chemistry is the study of all substances containing:

Accepted Answer

carbon

Question 15

The smallest part of an element that can exist is the:

Accepted Answer

atom

Question 16

An example of an element is:

Accepted Answer

oxygen

Question 17

A substance which chemically cannot be broken down into simpler substances is called:

Accepted Answer

an element

Question 18

The nucleus of an atom contains:

Accepted Answer

protons and neutrons

Question 19

An atom contains:

Accepted Answer

positive protons, uncharged neutrons and negative electrons

Question 20

The predominant bonding of atoms in inorganic compounds is know as:

Accepted Answer

ionic

Question 21

The smallest part of a compound which still has the same properties of that compound is:

Accepted Answer

a molecule

Question 22

Which one of the following is not an element?

Accepted Answer

water

Question 23

Organic chemistry is the:

Accepted Answer

chemistry of carbon compounds

Question 24

Which one of the following is a covalent compound?

Accepted Answer

carbon dioxide

Question 25

Which of the following is a solid hydrocarbon?

Accepted Answer

paraffin wax

Question 26

A substance formed by uniting two elements chemically is known as a/an:

Accepted Answer

compound

Question 27

The number of states in which matter can exist is:

Accepted Answer

three

Question 28

Rusting of iron is caused by:

Accepted Answer

oxidation

Question 29

Inorganic chemistry:

Accepted Answer

study of elements and their compounds except chemistry of carbon compounds

Question 30

Which one of the following compounds is a hydrocarbon?

Accepted Answer

petroleum

Basic Chemistry

Questions 30

Basic Chemistry

Questions 30