119 minutes Time: 119 marks Marks: Comments: Q1.The table shows some information about acids and alkalis. Effect on Name of acid Ions produced in Type pH Universal or alkali solution Indicator Hydrochloric Strong H+ CI 1 Goes red – acid acid Sodium Strong Na+ OH 13 Goes purple – hydroxide alkali Use the information in the table to help you answer parts (a) and (b). (a) Draw a ring around the correct answer to complete the sentences. (i) Hydrochloric acid is acidic. Cl– This is because it contains H+ ions. OH– (1) (ii) Sodium hydroxide solution is alkaline.
Time: 119 minutes Marks: 119 marks Comments: Q1.The table shows some information about acids and alkalis. Name of acid or alkali Type Ions produced in solution pH Effect on Universal Indicator Hydrochloric acid Strong acid H+ CI – 1 Goes red Sodium hydroxide Strong alkali Na+ OH – 13 Goes purple Use the information in the table to help you answer parts (a) and (b). (a) Draw a ring around the correct answer to complete the sentences. (i) Hydrochloric acid is acidic. Cl– This is because it contains H+ ions. OH– (1) (ii) Sodium hydroxide solution is alkaline.
c5_chemical_changes_exam_qs.docx