Chemistry 5070/22 — October/November 2023

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

questions

marks

105

minutes

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

Q15MChemistry of the EnvironmentOrganic ChemistryAtoms, Elements and CompoundsFree sample

Choose from the list of compounds to answer these questions.

ammonia
ethanol
glucose
magnesium chloride
magnesium oxide
methane
nitrogen dioxide
phosphorus(V) chloride
poly(ethene)
sodium bromide
water

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

Identify the compound that:

(a)

is a waste gas from digestion in animals

______

(b)

turns blue cobalt(II) chloride pink

______

(c)

reacts with ethene above $100^\circ\text{C}$ to produce ethanol

______

(d)

is a product of photosynthesis

______

(e)

contains an anion with a charge of –2.

______

The rest of this paper

8 more questions

Q2Metals · The Periodic Table · Atoms, Elements and Compounds · Stoichiometry13M
Q3Stoichiometry · Chemical Reactions · States of Matter8M
Q4Electrochemistry · Experimental Techniques and Chemical Analysis · Chemical Reactions · Atoms, Elements and Compounds10M
Q5Organic Chemistry · States of Matter10M
Q6Chemical Energetics · Chemistry of the Environment · Electrochemistry7M
Q7Stoichiometry · Acids, Bases and Salts · Chemistry of the Environment11M
Q8Chemical Reactions · Organic Chemistry7M
Q9Atoms, Elements and Compounds · Stoichiometry9M

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