MCQ

CH6 - USING MOLES

The diagram shows an experiment to find the formula of magnesium oxide.Which piece of apparatus would be needed in addition to those shown?

2013 Summer

MCQ

CH6 - USING MOLES

The equation shows the reaction between magnesium and sulfuric acid. [A_r: H, 1; O, 16; Mg, 24; S, 32] $$ \text{Mg} + \text{H}_2\text{SO}_4 \rightarr...

2016 Summer

MCQ

CH6 - USING MOLES

The equation shows the reaction between magnesium and sulfuric acid. [Ar: H, 1; O, 16; Mg, 24; S, 32]$$\text{Mg} + \text{H}_2\text{SO}_4 \rightarrow \...

2016 Summer

MCQ

CH6 - USING MOLES

The equation shows the reaction between magnesium and sulfuric acid. [A_r: H, 1; O, 16; Mg, 24; S, 32]$$\text{Mg} + \text{H}_2\text{SO}_4 \rightarrow ...

2016 Summer

MCQ

CH6 - USING MOLES

The equation for the reaction between magnesium and dilute sulfuric acid is shown.The $M_r$ of MgSO$_4$ is 120.$$\text{Mg} + \text{H}_2\text{SO}_4 \ri...

2018 Summer

Theory

CH6 - USING MOLES

(a) The properties of some Group VII elements are shown in the table.[Table_1]The table includes columns for 'element', 'melting point in °C', 'boili...

2018 Summer

Theory

CH6 - USING MOLES

(a) The table shows the concentrations of the ions present in the solution obtained from squid nerve cells and in human blood plasma.[Table_1]Answer t...

2018 Winter

MCQ

CH6 - USING MOLES

In separate experiments, electricity was passed through concentrated aqueous sodium chloride and molten lead(II) bromide.What would happen in both exp...

2021 Summer

MCQ

CH6 - USING MOLES

The equation for the decomposition of calcium carbonate is shown. $\text{CaCO}_3 \rightarrow \text{CaO} + \text{CO}_2$ What mass of calcium oxide is...

2021 Summer

MCQ

CH1 - STATES OF MATTER

In which changes do the particles move further apart? $$\text{W} \rightleftharpoons \text{Y} \text{ (gas)}$$ $$\text{X} \rightleftharpoons \text{Z} ...

2016 Summer

MCQ

CH2 - SEPARATING SUBSTANCES

A sample of a dye is investigated by chromatography. A line is drawn across a piece of chromatography paper and a spot of the dye is placed on it.The ...

2016 Summer

MCQ

CH2 - SEPARATING SUBSTANCES

One of the instructions for an experiment reads as follows. Quickly add 50 $\text{cm}^3$ of acid. What is the best piece of apparatus to use?

2016 Summer

MCQ

CH4 - ATOMS COMBINING

Diamond and graphite are macromolecules.Which statement about diamond and graphite is not correct?

2016 Summer

MCQ

CH4 - ATOMS COMBINING

The table shows the electronic structure of four atoms.[Table_1]Which two atoms combine to form a covalent compound?

2016 Summer

MCQ

CH3 - ATOMS AND ELEMENTS

An aluminium atom has a nucleon number of 27 and a proton number of 13.How many neutrons does this aluminium atom contain?

2016 Summer

MCQ

CH4 - ATOMS COMBINING

What happens when a bond is formed between a green gaseous element and a soft metallic element?

2016 Summer

MCQ

CH6 - USING MOLES

The equation shows the reaction between magnesium and sulfuric acid. [A_r: H, 1; O, 16; Mg, 24; S, 32] $$ \text{Mg} + \text{H}_2\text{SO}_4 \rightarr...

2016 Summer

MCQ

CH1 - STATES OF MATTER

The diagram shows an electrical cable.Which statement about the substances used is correct?

2016 Summer

MCQ

CH1 - STATES OF MATTER

When substance X is electrolysed, the amount of gases P and Q formed is shown. What is substance X?

2016 Summer