MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

Three processes are listed. burning methane in air radioactive decay of $^{235}U$ reacting hydrogen with oxygen. Which statements about these proc...

2011 Summer

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

Solutions of two chemicals are mixed.A reaction occurs and the temperature change is measured.Which statement is correct?

2014 Summer

3

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

Statement 1 Hydrogen is used as a fuel.Statement 2 When hydrogen burns in the air to form water, heat energy is produced. Which is correct?

2013 Summer

1

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

The equation for the effect of heat on hydrated sodium carbonate is as shown.$$\text{Na}_2\text{CO}_3 \cdot 10\text{H}_2\text{O}(s) \rightleftharpoons...

2011 Summer

2

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

Power stations produce electrical energy from different fuels. Which fuel causes least pollution to the atmosphere?

2014 Summer

2

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

Which substance does not require oxygen in order to produce energy?

2013 Summer

1

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

The diagram shows the reaction between zinc oxide and dilute hydrochloric acid.Which terms describe the reaction?

2012 Summer

1

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

The diagram shows some properties that substances may have.To which labelled part of the diagram does $^{235}\text{U}$ belong?

2009 Summer

1

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

Butane, ethanol and hydrogen are fuels.Which substances produce both carbon dioxide and water when used as a fuel?[Table_1]

2011 Summer

1

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

Which diagram shows a process in which an endothermic change is taking place?

2009 Summer

2

MCQ

CH1 - STATES OF MATTER

The changes that occur when a substance changes state are shown below.$$ \text{solid} \underset{Z}{\overset{W}{\leftrightarrows}} \text{liquid} \under...

2015 Summer

1

MCQ

CH1 - STATES OF MATTER

A student uses the apparatus shown in the diagram below to measure the volume of carbon dioxide gas made when different masses of marble chips are add...

2015 Summer

1

MCQ

CH3 - ATOMS AND ELEMENTS

Atoms contain electrons, neutrons and protons.What is the definition of nucleon number?

2015 Summer

1

MCQ

CH3 - ATOMS AND ELEMENTS

The diagram shows the atomic structure of an element X.What is X?

2015 Summer

2

MCQ

CH3 - ATOMS AND ELEMENTS

Which statements comparing the properties of electrons, neutrons and protons are correct? [Table_1: Neutrons and protons are both heavier than electr...

2015 Summer

2

MCQ

CH4 - ATOMS COMBINING

Rescuers are drilling through fallen rock in order to rescue some men trapped in a cave. The drill needs lubricating from time to time. The following...

2015 Summer

1

MCQ

CH4 - ATOMS COMBINING

In which compounds are pairs of electrons shared between atoms?1. methane2. lead bromide3. sodium chloride

2015 Summer

2

MCQ

CH5 - REACTING MASSES AND CHEMICAL EQUATIONS

What is the relative formula mass, $M_r$, of CaCO$_3$?

2015 Summer

2

MCQ

CH1 - STATES OF MATTER

Copper and hydrogen can each be formed by electrolysis. At which electrodes are these elements formed? [Table_1]

2015 Summer

1

MCQ

CH1 - STATES OF MATTER

The diagram shows a failed attempt to copper-plate a pan.Which action will plate the pan with copper?

2015 Summer

2