Question 1

Student carried out an experiment to study the rate of reaction when a piece of magnesium was added to some dilute hydrochloric acid.

Which piece of apparatus is not required for this experiment?

Accepted Answer

Bunsen Burner

Answer

stop-watch

Answer

gas syringe

Answer

conical flask

Question 2

Solid X is dissolved in water in a test-tube.

Aqueous sodium hydroxide is added to the test-tube and a white precipitate forms.

The white precipitate dissolves in excess aqueous sodium hydroxide.

Powdered aluminium is now added to the test-tube and the mixture is carefully heated.

A gas is evolved which turns damp red litmus paper blue.

What is X?

Accepted Answer

aluminium nitrate

Answer

ammonium sulfate

Answer

iron(II) nitrate

Answer

zinc sulfate

Question 3

An atom of fluorine is represented by $_9^{19}F$ .

What is the electron arrangement of the fluoride ion?

Accepted Answer

2,8

Answer

2,8,1

Answer

2,6

Answer

2,7

Question 4

Sodium chloride, NaCl, is an ionic compound.

Which statement about sodium chloride is not correct?

Accepted Answer

It has a low melting point.

Answer

It contains positive and negative ions.

Answer

It dissolves in water.

Answer

The ions are arranged in a giant crystal lattice.

Question 5

Two elements, A and B, forma a compound of formula AB₃. A 'dot and cross' diagram of a molecule AB₃ is shown. Only the outer shell electrons are shown.

Which statement is not correct?

Accepted Answer

The molecule contains a total of eight electrons.

Answer

A and B are both non-metals

Answer

B is hydrogen.

Answer

A is in Group 15 of the Periodic Table.

Question 6

Which ions are present in solid chromium sulfate, Cr₂(SO₄)₃?

Accepted Answer

$Cr\mathrm{^{3+}}$ and $SO_4^{\ \ 2-}$

Answer

$Cr\mathrm{^{3+}}$ and $SO_4^{\ \ 2-}$

Answer

$Cr\mathrm{^{3+}}$ and $SO_4^{\ \ 2-}$

Answer

$Cr\mathrm{^{3+}}$ and $SO_4^{\ \ 2-}$

Question 7

0.1 mol/dm³ hydrochloric acid reacts with 25.0 cm³ of 0.2mol/dm³ aqueous sodium carbonate.

The equation for this reaction is shown.

2HCl + Na₂CO₃ $\rightarrow$ 2NaCl + H₂O + CO₂

What is the volume of acid required to completely react with this volume of sodium carbonate?

Accepted Answer

25 cm3

Answer

6.25 cm3

Answer

100 cm3

Answer

50 cm3

Question 8

Solutions of two chemicals are mixed in a beaker.

A reaction occurs and a decrease in temperature is observed.

Which statement is correct?

Accepted Answer

An endothermic reaction occurs and the reacting chemicals gain energy.

Answer

An endothermic reaction occurs and the reacting chemicals lose energy.

Answer

An exothermic reaction occurs and the reacting chemicals gain energy.

Answer

An exothermic reaction occurs and the reacting chemicals lose energy.

Question 9

Copper(II) oxide reacts with sulfuric acid.

Which change increases the rate of reaction by increasing the movement of the particles?

Accepted Answer

increase in temperature of sulfuric acid

Answer

using a catalyst

Answer

increase in concentration of sulfuric acid

Question 10

Chlorine reacts with iron(II) chloride.

The equation for the reaction is shown.

2FeCl₂ + Cl₂ $\rightarrow$ 2FeCl₃

Which statement about the reaction is correct?

Accepted Answer

The iron(II) chloride is a reducing agent and is oxidised.

Answer

The iron(II) chloride is an oxidising agent and is reduced.

Answer

The iron(II) chloride is a reducing agent and is reduced.

Answer

The iron(II) chloride is an oxidising agent and is oxidised.

Question 11

The volume of gas produced in a reaction is measured against time.

Which results show the slowest average rate of reaction?

Accepted Answer

C

Answer

A

Answer

B

Answer

D

Question 12

The oxide of an element X is added separately to hydrochloric acid and aqueous sodium hydroxide.

The word equations for the reactions are shown.

X oxide + hydrochloric acid $\rightarrow$ X chloride + water

X oxide + sodium hydroxide $\rightarrow$ no reaction

Which row describes element X and its oxide?

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 13

Some information about Group 1 elements is shown.

Which statement about the trends shown by the elements in Group 1 of the Periodic Table is not correct?

Accepted Answer

As the number of electron shells increases an electron is less easily lost.

Answer

As the atomic number increases the melting point decreases.

Answer

As the number of protons increases the atomic radius increases.

Answer

As the number of electrons increases the elements are more reactive with water.

Question 14

Astatine is at the bottom of Group 17 in the Periodic Table.

Which row describes the properties of astatine?

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 15

The reactions of four metals are shown.

What is the order of reactivity of the metals?

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Question 16

Which noble gases has the highest percentage composition in dry air?

Accepted Answer

argon

Answer

krypton

Answer

neon

Answer

helium

Question 17

Which statement about alkanes is correct?

Accepted Answer

They react with chlorine in a substitution reaction.

Answer

A molecule of propane contains two carbon atoms.

Answer

The products of complete combustion are carbon monoxide and water.

Answer

The general formula is C_nH_2n.

Question 18

The structure of a monomer is shown.

What is the structure of the polymer formed by this monomer?

Accepted Answer

https://uploads.quizalize.com/b4ef1488-ced8-4e64-afb6-8bc209b8857e/question/ee348bca937484eba546ac02273143729127b79b.png

Answer

https://uploads.quizalize.com/b4ef1488-ced8-4e64-afb6-8bc209b8857e/question/480037576587cbeac1af9c5e74216bfb2842b144.png

Answer

https://uploads.quizalize.com/b4ef1488-ced8-4e64-afb6-8bc209b8857e/question/5fc6186328f3e593de40c8ee9a84a2979d0311ea.png

Answer

https://uploads.quizalize.com/b4ef1488-ced8-4e64-afb6-8bc209b8857e/question/9250e714075718c0d720954bd2e07a81358df794.png

Question 19

An organic compound E reacts with acidified potassium manganate(VII) solution causing a colour change.

What is E?

Accepted Answer

ethanol

Answer

ethanoic acid

Answer

poly(ethene)

Answer

ethane

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