Please write clearly in black ink. Do not write in the barcodes. First name(s) Last name Centre number Candidate number OCR is an exempt Charity Turn over Tuesday 23 May 2023 – Morning AS Level Chemistry B (Salters) H033/02 Chemistry in depth Time allowed: 1 hour 30 minutes You must have: • the Data Sheet for Chemistry B You can use: • a scientific or graphical calculator • an HB pencil INSTRUCTIONS • Use black ink. You can use an HB pencil, but only for graphs and diagrams. • Write your answer to each question in the space provided. If you need extra space use the lined pages at the end of this booklet. The question numbers must be clearly shown. • Answer all the questions. • Where appropriate, your answer should be supported with working. Marks might be given for using a correct method, even if your answer is wrong. INFORMATION • The total mark for this paper is 70. • The marks for each question are shown in brackets [ ]. • Quality of extended response will be assessed in questions marked with an asterisk (*). • This document has 16 pages. ADVICE • Read each question carefully before you start your answer.