MCQ

CH14 - MAKING USE OF METALS

Which process is involved in the extraction of zinc from zinc blende?

2017 Summer

1

MCQ

CH14 - MAKING USE OF METALS

Stainless steel is an alloy of iron and other metals. It is strong and does not rust but it costs much more than normal steel.What is not made from st...

2017 Summer

4

MCQ

CH14 - MAKING USE OF METALS

Iron from a blast furnace is treated with oxygen and with calcium oxide to make steel.Which substances in the iron are removed?[Table_1]

2016 Summer

3

MCQ

CH14 - MAKING USE OF METALS

Why is cryolite used during the extraction of aluminium by electrolysis?

2016 Summer

3

MCQ

CH14 - MAKING USE OF METALS

Why is argon gas used to fill electric lamps?

2017 Winter

1

MCQ

CH14 - MAKING USE OF METALS

Impurities in iron obtained from the blast furnace include carbon, phosphorus, and silicon. Which impurities are removed from the molten iron as gase...

2016 Winter

1

MCQ

CH14 - MAKING USE OF METALS

Which statement about the industrial extraction of aluminium from aluminium oxide is correct?

2016 Winter

2

MCQ

CH14 - MAKING USE OF METALS

The alloy brass is a mixture of copper and another metal. Brass is used to make the pins of electrical plugs. Copper is used to make electrical wiring...

2016 Winter

2

MCQ

CH14 - MAKING USE OF METALS

Stainless steel is an alloy of iron and other metals. It is strong and does not rust but it costs much more than normal steel. What is not made from s...

2017 Summer

3

MCQ

CH14 - MAKING USE OF METALS

Aluminium is extracted by electrolysis of a mixture of aluminium oxide and cryolite. Which statement is not correct?

2016 Summer

2

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