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

2

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

2

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

2

MCQ

CH7 - REDOX REACTIONS

Which change represents an oxidation reaction?

2016 Winter

2

Theory

CH1 - STATES OF MATTER

The diagram shows how the molecules in the exhaust gases diffuse into the air.Which statement describes what happens to these molecules next?A. The mo...

2009 Summer

2

Theory

CH2 - SEPARATING SUBSTANCES

A student takes 2 g samples of calcium carbonate and adds them to 20 cm$^3$ samples of dilute hydrochloric acid at different temperatures. She measure...

2009 Summer

2

Theory

CH2 - SEPARATING SUBSTANCES

The diagram shows the paper chromatograms of four substances, W, X, Y and Z. Which two substances are pure?A W and X B W and Y C X and Y D X and Z

2009 Summer

1

Theory

CH3 - ATOMS AND ELEMENTS

An element S has the proton number 18. The next element in the Periodic Table is an element T. Which statement is correct?A Element T has one more ele...

2009 Summer

2

Theory

CH3 - ATOMS AND ELEMENTS

Which numbers are added together to give the nucleon number of an ion?A number of electrons + number of neutronsB number of electrons + number of prot...

2009 Summer

1

Theory

CH3 - ATOMS AND ELEMENTS

The electronic configuration of an ion is 2.8.8.What could this ion be?[Table_1]

2009 Summer

1

Theory

CH4 - ATOMS COMBINING

The diagrams show the structures of two forms, P and Q, of a solid element. What are suitable uses of P and Q, based on their structures?[Table_1]

2009 Summer

2

Theory

CH4 - ATOMS COMBINING

Element V forms an acidic, covalent oxide. Which row in the table shows how many electrons there could be in the outer shell of an atom of V? [Table...

2009 Summer

2

Theory

CH4 - ATOMS COMBINING

When sodium chloride is formed from its elements, each chlorine atom ......1...... one ......2....... Which words correctly complete gaps 1 and 2? [...

2009 Summer

2

Theory

CH5 - REACTING MASSES AND CHEMICAL EQUATIONS

Nitrogen and hydrogen react together to form ammonia.$N_2 + 3H_2 \rightarrow 2NH_3$When completely converted, 7 tonnes of nitrogen gives 8.5 tonnes of...

2009 Summer

3