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

1

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

1

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

1

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

3

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

2

MCQ

CH11 - ACIDS AND BASES

A student investigated the diffusion of ammonia gas, NH$_3$, and hydrogen chloride gas, HCl.Two sets of apparatus were set up as shown at room tempera...

2018 Summer

2

MCQ

CH2 - SEPARATING SUBSTANCES

Chromatography is a technique used to separate coloured dyes.Which dye has an $R_f$ value of 0.7?

2018 Summer

2

MCQ

CH2 - SEPARATING SUBSTANCES

Which piece of apparatus is used to measure exactly 26.3 cm³ of a liquid?

2018 Summer

1

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...

2018 Summer

2

MCQ

CH3 - ATOMS AND ELEMENTS

Chlorine exists as two common isotopes, $^{35}Cl$ and $^{37}Cl$.Information about these two isotopes is shown.[Table_1]Which statement explains why th...

2018 Summer

3

MCQ

CH4 - ATOMS COMBINING

Which substance is not a macromolecule?

2018 Summer

2

MCQ

CH12 - THE PERIODIC TABLE

Copper is a metallic element. Which statements about copper are correct? 1. Copper is malleable because layers of ions are in fixed positions and ca...

2018 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

CH5 - REACTING MASSES AND CHEMICAL EQUATIONS

A solution of ethanoic acid, CH$_3$COOH, has a concentration of 2 mol/dm$^3$.Which statement about this solution is correct?

2018 Summer

2

MCQ

CH7 - REDOX REACTIONS

Aqueous copper(II) sulfate is electrolysed using copper electrodes. Which statement is correct?

2018 Summer

2