Chemistry 9701/12 — February/March 2023

Cambridge AS Level · answer key with instant marking and worked solutions

questions

marks

minutes

Topics Electrochemistry · Atomic Structure · Atoms, Molecules and Stoichiometry · Introduction to Organic Chemistry · Hydroxy Compounds · Hydrocarbons · +15 more

Tap an option under each question to check it — your score builds as you go.

Q11MElectrochemistryFree sample

Four equations representing reactions of nitrogen or one of its compounds are given.

Which equation represents a disproportionation reaction?

Options

A $2\text{HNO}_3 + \text{CaCO}_3 \rightarrow \text{Ca}(\text{NO}_3)_2 + \text{CO}_2 + \text{H}_2\text{O}$
B $\text{N}_2 + 3\text{H}_2 \rightarrow 2\text{NH}_3$
C $\text{NH}_4\text{Cl} + \text{NaOH} \rightarrow \text{NH}_3 + \text{NaCl} + \text{H}_2\text{O}$
D $2\text{NO}_2 + \text{H}_2\text{O} \rightarrow \text{HNO}_3 + \text{HNO}_2$

The rest of this paper

39 more questions

Q2Reaction Kinetics1M
Q3Atomic Structure1M
Q4Equilibria1M
Q5Equilibria1M
Q6Electrochemistry1M
Q7Electrochemistry1M
Q8Chemical Bonding1M
Q9States of Matter1M
Q10Chemical Energetics1M
Q11Atoms, Molecules and Stoichiometry · Atomic Structure1M
Q12Atomic Structure1M
Q13Atomic Structure1M
Q14Chemical Bonding1M
Q15Atoms, Molecules and Stoichiometry1M
Q16Chemical Energetics · Group 171M
Q17Nitrogen and Sulfur1M
Q18Group 171M
Q19Chemical Periodicity1M
Q20States of Matter · Group IV (Group 14)1M
Q21Group 2 · Atoms, Molecules and Stoichiometry1M
Q22Chemical Periodicity1M
Q23Group 21M
Q24Group 21M
Q25Introduction to Organic Chemistry1M
Q26Nitrogen Compounds · Halogen Compounds1M
Q27Halogen Compounds · Introduction to Organic Chemistry1M
Q28Hydroxy Compounds1M
Q29Introduction to Organic Chemistry1M
Q30Electrochemistry · Hydrocarbons1M
Q31Halogen Compounds1M
Q32Carboxylic Acids and Derivatives · Hydroxy Compounds1M
Q33Hydroxy Compounds · Hydrocarbons1M
Q34Introduction to Organic Chemistry · Carbonyl Compounds1M
Q35Hydroxy Compounds · Carbonyl Compounds1M
Q36Carboxylic Acids and Derivatives1M
Q37Atoms, Molecules and Stoichiometry1M
Q38Analytical Techniques1M
Q39Hydrocarbons1M
Q40Hydrocarbons1M

Loading the full paper…