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IGCSE Chemistry Extended2.1 Elements, compounds and mixturesTopic Practice

2.1 Elements, compounds and mixtures

CAIE IGCSE Chemistry Extended 2.1 Elements, compounds and mixtures question practice helps you revise this syllabus point with the course map in view. Use this page to focus on one topic, check the style of questions available, and connect each attempt back to the knowledge area it is testing.

EduNinja keeps Chemistry practice aligned to CAIE at Extended level, so you can move from topic review into exam-style question bank work without losing the syllabus structure. Start with a small set, mark the weak steps, then return to nearby topic links when a definition, graph, calculation, or explanation needs repair.

Question 1(h)

[Maximum number: 1]

A list of substances is shown.

Table

Answer the questions using the list of substances.
Each substance may be used once, more than once or not at all.
State which of the substances:

is a form of carbon.

Question 1(a)

[Maximum number: 1]

A list of substances is shown.
> ammonia bauxite carbon dioxide carbon monoxide ethanol hematite oxygen sodium chloride sulfur dioxide

Answer the questions using the list of substances.
Each substance may be used once, more than once or not at all.
State which substance is:

an element ..... [1]

Question 1(d)

[Maximum number: 1]

The names of nine substances are shown.
> aluminium oxide ammonia carbon monoxide anhydrous cobalt(II) chloride hydrated copper(II) sulfate iron(III) oxide nitrogen dioxide silver steel

Answer the following questions using these substances. Each substance may be used once, more than once or not at all.

Name the substance that is:

an element ..... [1]

Question 1(a)

[Maximum number: 1]

Answer the following questions using only the substances in the list. Each substance may be used once, more than once or not at all.

Table

State which substance is:

an element ..... [1]

Question 1(a)

[Maximum number: 2]

Substances can be classified as elements, compounds or mixtures.

What is meant by the term compound?

Question 1(c)(i)

[Maximum number: 1]

This question is about gases.

Air is a mixture. Nitrogen and oxygen are the two most common gases in air.

What is meant by the term mixture?

Question 1

[Maximum number: 4]

Substances can be classified as elements, compounds or mixtures.
State whether each of the following is an element, a compound or a mixture.

Question 1(a)

(a)

brass ..... [1]

[ 1 ]

Question 1(b)

(b)

gold ..... [1]

[ 1 ]

Question 1(c)

(c)

butane ..... [1]

[ 1 ]

Question 1(d)

(d)

air ..... [1]

[ 1 ]

Question 1

Question 1(b)

(a)

State what is meant by the terms

[ 2 ]

Question 1(b)(i)

(i)

element,

[ 1 ]

Question 1(b)(ii)

(ii)

compound,

[ 1 ]

Question 1

Question 1(b)

(a)

Give the formula of a compound that contains

[ 2 ]

Question 1(b)(i)

(i)

only boron and oxygen,

[ 1 ]

Question 1(b)(ii)

(ii)

only lithium and nitrogen.

[ 1 ]

Question 1(b)

[Maximum number: 1]

Gallium is a Group III element.

Define the term element.

0 selected