MCQ

CH4 - ATOMS COMBINING

In which compounds are pairs of electrons shared between atoms?1 sodium chloride2 methane3 lead bromide

2010 Summer

2

MCQ

CH4 - ATOMS COMBINING

Element X has six electrons in its outer shell.How could the element react?

2010 Summer

2

MCQ

CH4 - ATOMS COMBINING

In the diagrams, circles of different sizes represent atoms of different elements. Which diagram represents hydrogen chloride gas?

2011 Summer

3

MCQ

CH4 - ATOMS COMBINING

Which row shows the change that takes place when element X gains the new particle shown? [Table_1]

2010 Summer

3

MCQ

CH4 - ATOMS COMBINING

Which two elements react together to form an ionic compound?[Table_1]Table 1: Electronic structures of the elements W, X, Y, and Z.

2011 Summer

2

MCQ

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?

2009 Summer

2

MCQ

CH4 - ATOMS COMBINING

The 'lead' in a pencil is made of a mixture of graphite and clay. When the percentage of graphite is increased, the pencil slides across the paper mor...

2014 Summer

2

MCQ

CH4 - ATOMS COMBINING

Electrons from each element are shared by both of the elements in a compound. Which compound matches this description?

2013 Summer

2

MCQ

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_1...

2009 Summer

2

MCQ

CH4 - ATOMS COMBINING

The electronic structures of two atoms, X and Y, are shown. X and Y combine together to form a compound. What is the type of bonding in the compou...

2014 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