Which row shows the correct formula for the named substance?

A.
B.
C.
D.
Chemistry
IGCSE&ALevel
CAIE
Exam No:0620_s25_qp_11 Year:2025 Question No:9

Answer:

B

Knowledge points:

8.1.1. Describe the Periodic Table as an arrangement of elements in periods and groups and in order of increasing proton number / atomic number

Solution:

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