Chemistry 9701/12 — October/November 2020
Cambridge AS Level · Multiple Choice (AS Level) · answer key with instant marking and worked solutions
40
questions
40
marks
60
minutes
Topics Hydroxy Compounds · Atoms, Molecules and Stoichiometry · Equilibria · Introduction to Organic Chemistry · Carbonyl Compounds · Chemical Bonding · +15 more
Tap an option under each question to check it — your score builds as you go.
Q11MElectrochemistryFree sample
What is the average oxidation number of sulfur in each compound?
Options
| Ca(HSO₃)₂ | Na₂S₂O₃ | |
|---|---|---|
| A | 4 | 2 |
| B | 4 | 4 |
| C | 6 | 2 |
| D | 6 | 4 |
The rest of this paper
39 more questions- Q2Atoms, Molecules and Stoichiometry1M
- Q3Atomic Structure1M
- Q4Chemical Bonding1M
- Q5Atoms, Molecules and Stoichiometry1M
- Q6States of Matter1M
- Q7States of Matter · Atoms, Molecules and Stoichiometry1M
- Q8Chemical Energetics1M
- Q9Electrochemistry1M
- Q10Equilibria1M
- Q11Reaction Kinetics1M
- Q12Chemical Periodicity1M
- Q13Group 21M
- Q14Equilibria · Group 171M
- Q15Equilibria · Chemical Bonding1M
- Q16Chemical Periodicity1M
- Q17Group 171M
- Q18Nitrogen and Sulfur · Hydroxy Compounds1M
- Q19Chemical Periodicity · Atoms, Molecules and Stoichiometry1M
- Q20Introduction to Organic Chemistry1M
- Q21Introduction to Organic Chemistry1M
- Q22Polymerisation1M
- Q23Carbonyl Compounds1M
- Q24Hydroxy Compounds · Halogen Compounds1M
- Q25Halogen Compounds · Carbonyl Compounds1M
- Q26Hydroxy Compounds1M
- Q27Carbonyl Compounds · Introduction to Organic Chemistry1M
- Q28Nitrogen and Sulfur · Hydrocarbons1M
- Q29Carboxylic Acids and Derivatives · Hydroxy Compounds1M
- Q30Analytical Techniques1M
- Q31Atomic Structure1M
- Q32Chemical Bonding · Polymerisation1M
- Q33Chemical Energetics1M
- Q34Equilibria1M
- Q35Group 21M
- Q36Atoms, Molecules and Stoichiometry · States of Matter1M
- Q37Hydroxy Compounds · Carbonyl Compounds1M
- Q38Hydrocarbons1M
- Q39Introduction to Organic Chemistry1M
- Q40Hydroxy Compounds · Carboxylic Acids and Derivatives · Nitrogen Compounds1M
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