MCQ

CH7 - REDOX REACTIONS

An example of a redox reaction is shown.$$ \text{Zn} + \text{Cu}^{2+} \rightarrow \text{Zn}^{2+} + \text{Cu} $$Which statement about the reaction is c...

2017 Summer

2

MCQ

CH7 - REDOX REACTIONS

Which equation represents a reduction reaction?

2016 Summer

1

MCQ

CH7 - REDOX REACTIONS

Which type of oxide is aluminium oxide?

2017 Summer

2

MCQ

CH7 - REDOX REACTIONS

Copper metal donates electrons to silver ions.Zinc metal donates electrons to copper ions.What is the strongest reducing agent?

2017 Winter

1

MCQ

CH7 - REDOX REACTIONS

Some properties of four oxides are listed. Oxide 1 reacts with both acids and alkalis to form salts. Oxide 2 reacts with acids to form salts but doe...

2017 Winter

1

MCQ

CH7 - REDOX REACTIONS

An example of a redox reaction is shown. Zn + Cu^{2+} \rightarrow Zn^{2+} + Cu Which statement about the reaction is correct?

2017 Summer

1

MCQ

CH7 - REDOX REACTIONS

Which equation represents a reduction reaction?

2016 Summer

1

MCQ

CH7 - REDOX REACTIONS

Which oxide is amphoteric?

2017 Summer

2

MCQ

CH7 - REDOX REACTIONS

Silver chloride reacts when it is exposed to light. Which row shows what happens to the silver in this process? [Table_1]

2017 Winter

1

MCQ

CH7 - REDOX REACTIONS

Which change represents an oxidation reaction?

2016 Winter

1

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

2

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

2

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

2

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

1

MCQ

CH3 - ATOMS AND ELEMENTS

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

2017 Summer

2

MCQ

CH4 - ATOMS COMBINING

Which statement about metals is not correct?

2017 Summer

1

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

2

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

1

MCQ

CH1 - STATES OF MATTER

Which statement about electrolysis is correct?

2017 Summer

1

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

2