9701/12

Chemistry 9701/12May/June 2023

Cambridge AS Level · Multiple Choice (AS Level) · answer key with instant marking and worked solutions

40
questions
40
marks
75
minutes

Topics Hydrocarbons · Introduction to Organic Chemistry · Atoms, Molecules and Stoichiometry · Atomic Structure · Hydroxy Compounds · Chemical Periodicity · +13 more

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

Q11MAtomic StructureFree sample

When chlorine gas is analysed in a mass spectrometer 35Cl+^{35}\text{Cl}^+ ions are detected.

Which row is correct?

Options

number of neutrons in 35Cl+^{35}\text{Cl}^+electronic configuration of 35Cl+^{35}\text{Cl}^+
A171s22s22p63s23p41\text{s}^2 2\text{s}^2 2\text{p}^6 3\text{s}^2 3\text{p}^4
B171s22s22p63s23p61\text{s}^2 2\text{s}^2 2\text{p}^6 3\text{s}^2 3\text{p}^6
C181s22s22p63s23p41\text{s}^2 2\text{s}^2 2\text{p}^6 3\text{s}^2 3\text{p}^4
D181s22s22p63s23p61\text{s}^2 2\text{s}^2 2\text{p}^6 3\text{s}^2 3\text{p}^6

The rest of this paper

39 more questions
  • Q2Atomic Structure1M
  • Q3Atomic Structure1M
  • Q4Hydrocarbons · Atoms, Molecules and Stoichiometry1M
  • Q5Atoms, Molecules and Stoichiometry1M
  • Q6Chemical Bonding1M
  • Q7Chemical Bonding1M
  • Q8States of Matter1M
  • Q9Chemical Energetics · Atoms, Molecules and Stoichiometry1M
  • Q10Chemical Energetics1M
  • Q11Electrochemistry1M
  • Q12Electrochemistry1M
  • Q13Equilibria1M
  • Q14Equilibria1M
  • Q15Reaction Kinetics1M
  • Q16Reaction Kinetics1M
  • Q17Chemical Periodicity · Atomic Structure1M
  • Q18Chemical Periodicity1M
  • Q19Chemical Periodicity1M
  • Q20Group 21M
  • Q21Group 21M
  • Q22Group 17 · Nitrogen and Sulfur1M
  • Q23Atoms, Molecules and Stoichiometry · Nitrogen and Sulfur1M
  • Q24Nitrogen and Sulfur1M
  • Q25Introduction to Organic Chemistry1M
  • Q26Introduction to Organic Chemistry1M
  • Q27Introduction to Organic Chemistry · Hydroxy Compounds · Carboxylic Acids and Derivatives1M
  • Q28Hydrocarbons · Introduction to Organic Chemistry1M
  • Q29Halogen Compounds · Hydrocarbons1M
  • Q30Hydrocarbons1M
  • Q31Hydrocarbons1M
  • Q32Halogen Compounds1M
  • Q33Hydroxy Compounds · Hydrocarbons · Introduction to Organic Chemistry1M
  • Q34Hydroxy Compounds1M
  • Q35Carbonyl Compounds1M
  • Q36Carbonyl Compounds1M
  • Q37Introduction to Organic Chemistry · Carbonyl Compounds1M
  • Q38Carboxylic Acids and Derivatives · Nitrogen Compounds1M
  • Q39Carboxylic Acids and Derivatives · Hydroxy Compounds1M
  • Q40Atoms, Molecules and Stoichiometry1M
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