Q1 of 9701_s23_qp_12

Question 1

Question 1 of 40

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No letter options?

Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.

A 1, 2 and 3 are correct

B 1 and 2 only are correct

C 2 and 3 only are correct

D 1 only is correct

Topics Tested

22. Analytical techniques

22.2. Mass spectrometry

deduce the presence of bromine and chlorine atoms in a compound using the \([M + 2]^+\) peak

1. Atomic structure

1.3. Electrons, energy levels and a...

determine the electronic configuration of atoms and ions given the atomic or proton number and charge, using either of the following conventions: e.g. for Fe: \( 1s^2 2s^2 2p^6 3s^2 3p^6 3d^6 4s^2 \) (full electronic configuration) or \( [Ar] 3d^6 4s^2 \) (shortband electronic configuration)