MCQ

CH3 - ATOMS AND ELEMENTS

Which element does not form a stable ion with the same electronic structure as argon?

2017 Summer

2

MCQ

CH3 - ATOMS AND ELEMENTS

Which statements about isotopes of the same element are correct?1 They are atoms which have the same chemical properties because they have the same nu...

2016 Summer

2

MCQ

CH3 - ATOMS AND ELEMENTS

Which row describes silicon(IV) oxide? [Table_1]

2017 Winter

2

MCQ

CH3 - ATOMS AND ELEMENTS

The table shows information about four different particles.[Table_1]What are the values of W, X, Y and Z?

2016 Winter

2

MCQ

CH3 - ATOMS AND ELEMENTS

Why do isotopes of the same element have the same chemical properties?

2017 Winter

2

MCQ

CH3 - ATOMS AND ELEMENTS

Which statements about isotopes of the same element are correct?1. They are atoms which have the same chemical properties because they have the same n...

2016 Summer

1

MCQ

CH3 - ATOMS AND ELEMENTS

The electronic structures of atoms Q and R are shown.Q and R form an ionic compound.What is the formula of the compound?

2017 Summer

2

MCQ

CH3 - ATOMS AND ELEMENTS

An atom has three electron shells. There are three electrons in the outer shell. How many protons and how many neutrons are in this atom? [Table_1]

2016 Winter

2

MCQ

CH3 - ATOMS AND ELEMENTS

Carbon has three naturally occurring isotopes, $^{12} ext{C}$, $^{13} ext{C}$ and $^{14} ext{C}$.Which statement explains why the isotopes have the sa...

2017 Winter

3

MCQ

CH3 - ATOMS AND ELEMENTS

Which dot-and-cross diagram shows the outer shell electron arrangement in a molecule of carbon dioxide?

2017 Winter

2

Theory

CH3 - ATOMS AND ELEMENTS

The table shows the numbers of protons, neutrons and electrons in particles A to I.[Table_1]Answer the following questions about particles A to I. Eac...

2021 Spring

1

Theory

CH15 - AIR AND WATER

The elements shown are gases at room temperature and pressure.hydrogennitrogenoxygenchlorine(a) State which one of these gases is green..................

2021 Spring

1

Theory

CH16 - SOME NON-METALS AND THEIR COMPOUNDS

This question is about ammonia.(a) Nitrogen reacts with hydrogen to form ammonia in an industrial process.$$N_2(g) + 3H_2(g) \rightleftharpoons 2NH_3(...

2021 Spring

1

Theory

Stoichiometry

A student wanted to make some zinc chloride crystals. The student followed the procedure shown. step 1 Add excess zinc powder to dilute hydrochlor...

2021 Spring

2

Theory

Plastics

The table shows the names or structures of organic compounds P to U. (a) Give the letters of the organic compounds, P to U, that are unsaturated hy...

2021 Spring

1

Theory

CH18 - POLYMERS

Polymers are large molecules built up from small molecules.(a) State the name given to the small molecules from which polymers are made..................

2021 Spring

2

MCQ

CH1 - STATES OF MATTER

A gas is released at point P in the apparatus shown. Which gas turns the damp universal indicator paper red most quickly?

2021 Summer

2

MCQ

CH2 - SEPARATING SUBSTANCES

A mixture is separated using the apparatus shown. What is the mixture?

2021 Summer

2

MCQ

CH2 - SEPARATING SUBSTANCES

Which statement about paper chromatography is correct?

2021 Summer

2

MCQ

CH3 - ATOMS AND ELEMENTS

Element X has 7 protons. Element Y has 8 more protons than X. Which statement about element Y is correct?

2021 Summer

1