Chemistry 5070/21 — October/November 2022

Cambridge O-Level · Theory · worked solutions for every part, with the mark scheme

questions

marks

minutes

Topics Chemical Reactions · Organic Chemistry · Metals · Chemistry of the Environment · Stoichiometry · Atoms, Elements and Compounds · +6 more

Q15MOrganic ChemistryMetalsChemistry of the EnvironmentThe Periodic TableFree sample

The diagram shows part of the Periodic Table.

Fig. 1.1

Answer the following questions using only the symbols of the elements in the diagram.

Each symbol may be used once, more than once or not at all.

Give the symbol of the element that:

(a)

is a catalyst in the hydrogenation of alkenes

______

(b)

is extracted by electrolysis of its oxide dissolved in cryolite

______

(c)

is a metal below copper in the reactivity series

______

(d)

is a gas used in welding

______

(e)

forms an ion with a charge of –1.

______

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8 more questions

Q2Atoms, Elements and Compounds · States of Matter · Chemistry of the Environment · Chemical Reactions · Organic Chemistry8M
Q3Organic Chemistry · Chemistry of the Environment · Stoichiometry10M
Q4Chemical Reactions · Stoichiometry · Acids, Bases and Salts · Chemical Energetics11M
Q5Chemical Reactions · Atoms, Elements and Compounds · Metals · Experimental Techniques and Chemical Analysis · Electrochemistry11M
Q6Chemical Reactions · Chemical Energetics · Stoichiometry · Chemistry of the Environment · Acids, Bases and Salts10M
Q7Organic Chemistry10M
Q8Metals · Atoms, Elements and Compounds · Acids, Bases and Salts · The Periodic Table10M
Q9Stoichiometry · Chemical Reactions · Electrochemistry · Metals10M

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