Free CXC Chemistry Question and Answers

Question 1

What are the 3 particles that make-up the atom?

Accepted Answer

protons, neutrons, and electrons

Answer

protons, neutrons, and isotopes

Answer

positives, negatives, and electrons

Answer

neutrons, isotopes, and electrons

Question 2

The proper formula for magnesium hydroxide:

Accepted Answer

Mg(OH)2

Answer

MgOH

Answer

Mg2OH

Answer

Mg2OH2

Question 3

The three types of nuclear radiation in order of increasing penetrating power are

Accepted Answer

alpha, beta, gamma

Answer

beta, alpha, gamma

Answer

alpha, gamma, beta

Answer

gamma, alpha, beta

Question 4

How many elements are in C6H12O6?

Accepted Answer

3

Answer

1

Answer

2

Answer

4

Question 5

A molecule is made up of

Accepted Answer

One or more atoms.

Answer

One or more mixtures.

Answer

One or more compounds.

Answer

One or more solutions.

Question 6

Molecule with the same molecular structure but different structural formula

Accepted Answer

Isomers

Answer

Fats

Answer

Fossil fuels

Answer

Lipids

Question 7

Name the group that has a single bond

Accepted Answer

Alkanes

Answer

Alkenes

Answer

Alcohols

Answer

Ethers

Question 8

Molecules with double/tripple bond

Accepted Answer

Unsaturated fats

Answer

Carbocilic acids

Answer

Alkynes

Answer

Saturated fats

Question 9

The name of this compaund C4H10

Accepted Answer

BUTANE

Answer

METHANE

Answer

BUTANOIC ACID

Answer

HEXENE

Question 10

The group made up of alcohols and acids

Accepted Answer

Esters

Answer

Ethers

Answer

Carbocilic acids

Answer

Alkynes