GCSE Chemistry - Elements, Compounds and Mixtures - 1 - Exam Style Questions with Answers

Created on January 24, 2023 By

paruppts12

GCSE_OCR_CHE_2_ELEMENTS_1

1 / 10

Electrostatic

Magnetic

Covalent

2 / 10

Different substances have characteristic melting and boiling points, depending on the strength of the bonds or forces holding them together.
Which explains why methane has a lower melting point than sodium chloride?

Covalent bonds are weaker than ionic bonds

Inter molecular forces are weaker than ionic bonds

Covalent bonds are stronger than ionic bonds

Inter molecular forces are stronger than ionic bonds

3 / 10

Which of the following shows the number of non-bonding electrons present in a molecule?

Molecular formula

Dot and cross diagrams

All of the above

Ball and stick diagrams

4 / 10

What type of substance is an alloy?

Mixture

Element

Compound

5 / 10

What is the type of bond in a molecule of hydrogen chloride?

Ionic

covalent

metallic

6 / 10

Graphite is made of carbon atoms.
How many carbon atoms does each carbon atom bond to in graphite?

3

1

4

2

7 / 10

Metals and non-metals commonly have different physical and chemical properties.

Which of the following is a property of metal elements only?

Conduct electricity when solid

Hard

Solid at room temperature

React with oxygen to form basic oxides

8 / 10

What type of bonding is present in potassium chloride?

covalent

metallic

ionic

9 / 10

The diagram represents the bonding in oxygen.
O=O
When two oxygen atoms bond, the atoms……….. electrons.

delocalise

Share

Transfer

10 / 10

It has a giant covalent structure

It has a giant metallic structure.

It is made of small molecules

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