MCQ

CH4 - ATOMS COMBINING

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

2010 Summer

1

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

2

MCQ

CH4 - ATOMS COMBINING

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

2010 Summer

2

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

2009 Summer

2

MCQ

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 measures ...

2009 Summer

1

MCQ

CH2 - SEPARATING SUBSTANCES

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

2009 Summer

1

MCQ

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?

2009 Summer

2

MCQ

CH3 - ATOMS AND ELEMENTS

Which numbers are added together to give the nucleon number of an ion?

2009 Summer

1

MCQ

CH3 - ATOMS AND ELEMENTS

The electronic configuration of an ion is 2.8.8. What could this ion be?[Table showing options for $S^{2-}$ and $Ca^{2+}$]

2009 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

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

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

MCQ

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

1