Theory

CH14 - MAKING USE OF METALS

Aluminium is extracted from its oxide by electrolysis. The oxide is dissolved in ……1…… cryolite and aluminium is deposited at the ……2…�...

2009 Summer

Theory

CH14 - MAKING USE OF METALS

Which diagram represents the structure of an alloy?

2009 Summer

Theory

CH14 - MAKING USE OF METALS

In a blast furnace, iron(III) oxide is converted to iron and carbon monoxide is converted to carbon dioxide.$$\text{Fe}_2\text{O}_3 + 3\text{CO} \righ...

2009 Summer

Theory

CH14 - MAKING USE OF METALS

Stainless steel is an alloy of iron and other metals. It is strong and does not rust but it costs much more than normal steel.What is not made from st...

2009 Summer

Theory

CH14 - MAKING USE OF METALS

Aluminium is extracted from its oxide by electrolysis.The oxide is dissolved in ......1...... cryolite and aluminium is deposited at the ......2.........

2009 Summer

Theory

CH14 - MAKING USE OF METALS

Which diagram represents the structure of an alloy?[Image of diagrams A, B, C, D]

2009 Summer

Theory

CH14 - MAKING USE OF METALS

In a blast furnace, iron(III) oxide is converted to iron and carbon monoxide is converted to carbon dioxide.$$\text{Fe}_2\text{O}_3 + 3\text{CO} \righ...

2009 Summer

Theory

CH14 - MAKING USE OF METALS

Stainless steel is an alloy of iron and other metals. It is strong and does not rust but it costs much more than normal steel.What is not made from st...

2009 Summer

Theory

CH14 - MAKING USE OF METALS

The diagram shows how aluminium is manufactured by electrolysis. What are the anode and cathode made of?[Table_1]

2009 Winter

Theory

CH14 - MAKING USE OF METALS

Which statement about alloys is not correct?A. Alloys are more expensive than the metals they are made from.B. Alloys are mixtures of different metals...

2009 Winter

MCQ

CH1 - STATES OF MATTER

Small crystals of purple $\text{KMnO}_4$ $(M_r = 158)$ and orange $\text{K}_2\text{Cr}_2\text{O}_7$ $(M_r = 294)$ were placed at the centres of separa...

2017 Summer

MCQ

CH2 - SEPARATING SUBSTANCES

Pure water has a boiling point of 100 °C and a freezing point of 0 °C. What is the boiling point and freezing point of a sample of aqueous sodium c...

2017 Summer

MCQ

CH2 - SEPARATING SUBSTANCES

A chromatogram obtained from the chromatography of four substances is shown. Which substance has an $R_f$ value of 0.6?

2017 Summer

MCQ

CH3 - ATOMS AND ELEMENTS

Sodium reacts with chlorine to form sodium chloride.Which statements describe what happens to the sodium atoms in this reaction?1. Sodium atoms form p...

2017 Summer

MCQ

CH3 - ATOMS AND ELEMENTS

Diamond is extremely hard and does not conduct electricity.Which statement explains these properties?

2017 Summer

MCQ

CH4 - ATOMS COMBINING

Which statement about metals is not correct?

2017 Summer

MCQ

CH4 - ATOMS COMBINING

Aluminium reacts with fluorine.$xAl(s) + yF_2(g) \rightarrow zAlF_3(s)$Which values of $x$, $y$ and $z$ balance the equation?[Table_1]

2017 Summer

MCQ

CH4 - ATOMS COMBINING

Carbon monoxide burns in oxygen to produce carbon dioxide. $$2\text{CO}(g) + \text{O}_2(g) \rightarrow 2\text{CO}_2(g)$$ Which mass of carbon dioxide...

2017 Summer

MCQ

CH1 - STATES OF MATTER

Which statement about electrolysis is correct?

2017 Summer

MCQ

CH1 - STATES OF MATTER

The reactivity series for a number of different metals is shown.[Image_1: Reactivity series and diagram]The diagram shows different metal strips dippe...

2017 Summer