MCQ

CH6 - USING MOLES

The equation for the reaction between calcium carbonate and hydrochloric acid is shown. $$\text{CaCO}_3(s) + 2\text{HCl}(aq) \rightarrow \text{CaCl}_2...

2016 Summer

2

MCQ

CH6 - USING MOLES

Which sample contains the greatest number of molecules?

2016 Winter

1

MCQ

CH6 - USING MOLES

Sodium carbonate solution reacts with dilute hydrochloric acid. The equation for the reaction is shown.$Na_2CO_3(aq) + 2HCl(aq) \rightarrow 2NaCl(aq) ...

2016 Winter

2

MCQ

CH6 - USING MOLES

Analysis of a compound formed between magnesium and nitrogen showed it contained 14.4 g of magnesium and 5.6 g of nitrogen. What is the empirical for...

2016 Summer

2

MCQ

CH6 - USING MOLES

An excess of zinc is added to $100 \text{cm}^3$ of $1.0 \text{mol/dm}^3$ hydrochloric acid.The equation for the reaction is:$$\text{Zn} + 2\text{HCl} ...

2016 Summer

1

MCQ

CH6 - USING MOLES

A compound, X, contains 40.0% carbon, 6.7% hydrogen and 53.3% oxygen by mass.The relative molecular mass, $M_r$, of X is 60.What is the molecular form...

2016 Summer

2

MCQ

CH6 - USING MOLES

The equation for the combustion of ethane is shown.$2C_2H_6 + 7O_2 \rightarrow 4CO_2 + 6H_2O$Which volume of carbon dioxide, at room temperature and p...

2018 Summer

2

MCQ

CH6 - USING MOLES

Benzene is a liquid with molecular formula $C_6H_6$.Ethene is a gas with molecular formula $C_2H_4$.Which statement is correct?

2016 Winter

2

MCQ

CH6 - USING MOLES

Sodium hydrogencarbonate undergoes thermal decomposition as shown. $$2\text{NaHCO}_{3} \rightarrow \text{Na}_{2}\text{CO}_{3} + \text{CO}_{2} + \text...

2016 Winter

4

MCQ

CH6 - USING MOLES

A student mixed together 25.0 cm^3 of 1.00 mol/dm^3 hydrochloric acid and 25.0 g of calcium carbonate.$$2HCl(aq) + CaCO_3(s) \rightarrow CaCl_2(aq) + ...

2018 Winter

3

MCQ

CH1 - STATES OF MATTER

Which statement explains why ammonia gas, $\text{NH}_3$, diffuses at a faster rate than hydrogen chloride gas, $\text{HCl}$?

2019 Summer

2

MCQ

CH2 - SEPARATING SUBSTANCES

2.00 g of powdered calcium carbonate is added to 50.0 cm$^3$ of hydrochloric acid. Which apparatus is used to measure the calcium carbonate and the h...

2019 Summer

3

MCQ

CH2 - SEPARATING SUBSTANCES

The measurements from a chromatography experiment using substance F are shown. The diagram is not drawn to scale.What is the $R_f$ value of F?

2019 Summer

2

MCQ

CH3 - ATOMS AND ELEMENTS

Which statement about an atom of fluorine, $^{19}_{9}\text{F}$, is correct?

2019 Summer

2

MCQ

CH4 - ATOMS COMBINING

Which row describes the formation of single covalent bonds in methane?

2019 Summer

2

MCQ

CH4 - ATOMS COMBINING

Which statement describes the structure of an ionic compound?

2019 Summer

2

MCQ

CH5 - REACTING MASSES AND CHEMICAL EQUATIONS

Propane burns in oxygen. $\text{C}_3\text{H}_8 + x\text{O}_2 \rightarrow 3\text{CO}_2 + y\text{H}_2\text{O}$Which values of $x$ and $y$ balance the eq...

2019 Summer

2

MCQ

CH5 - REACTING MASSES AND CHEMICAL EQUATIONS

A tablet contains 0.080g of ascorbic acid ($M_r = 176$).What is the concentration of ascorbic acid when one tablet is dissolved in 200 cm$^3$ of water...

2019 Summer

2

MCQ

CH1 - STATES OF MATTER

Which statement about the electrolysis of copper(II) sulfate solution using carbon electrodes is correct?

2019 Summer

2

MCQ

CH1 - STATES OF MATTER

Aluminium metal is extracted from aluminium oxide by electrolysis. Which ionic half-equation describes a reaction that occurs at the named electrode?...

2019 Summer

3