Compassvale-Secondary-Combined-Chemistry-Prelim-2022

BP -144 Effi]F+ COMPASSVALE SECON DARY SCHOOL PRELIMINARY EXAMINATION 2022 scrENcE (cHEMlsTRY, BTOLOGY) 5078/01 Paper 1 tVultiple Choice Secondary Four Express / Five Norma! (Academic) Name: lndex No: Class: Additional Materials: Multiple Choice Answer Sheet READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, glue or corection fluid. Write your name, class and index number on the Answer Sheet in the spaces provided unless this has been done for you. There are forty questions on this paper. Answer all questions. For each question there are four possible answers A, B, C and D. Choose the one you consider conect and record your choice in soft pencil on the separale Answer Sheet. Read the instructions on the Answer Sheet very carefully. Each conect answer will score one mark. A mark will not be deducted for a wrong answer Any rough working should be done in this booklet. A copy of the Data Sheet is printed on page 19. A copy of the Periodic Table is printed on page 20. The use of an approved scientific calculator is expected, where appropriate. This paper consists of 20 printed pages including this page. PartnerlnLeaming 1M Setters: Mdm C Lim, Duration: I h Date: 31 Aug2O22 Marks: I 40

BP- 145 2 2 1 3 A B c D A B c D Which apparatus is most suitable for collecting 25.0 cm3 of fluorine at room temperature? burette gas syringe measuring cylinder pipette The melting and boiling points of two substances X and Y are shown Substances X and Y are miscible liquids. substance melting point / 'C boiling point / 'C X 5.5 80 -95 1'10 Which method is most suitable to separate substances X and Y? crystallisation filtration fractional distillation simple distillation Which statements about the Kinetic Particle Theory are conect? 1 ln gaseous state, particles are far apart and moving in random directions' 2 Particles in solid state have lower kinetic energy than particles in liquid state' 3 During boiling, particles gain energy and break free from their fixed positions' A l and2 B 1and3 C 2and3 D 1,2 and 3 PartnerlnLeaming 145

BP- 146 3 4 A solid substance is heated to melt and cooled as shown in the diagram. temperature i "C M time / min What are the physical states of the substance at M and N? M N A B c D liquid liquid + solid liquid + solid solid liquid + solid liquid solid liquid + solid 5 A solution of lead(ll) nitrate is tested with different reagents. Which row gives the correct observation? 6 An element X forms an ion X2- Which group of the Periodic Table is this element found in? Group I Group ll Group Vl Group Vll PartnerlnLeaming 146 N A B c D test observation A B c D aqueous ammonia added aqueous sodium hydroxide added aqueous sodium hydroxide added dilute nitric acid added white precipitate formed, soluble in excess white precipitate formed, soluble in excess effervescence observed effervescence observed I

BP-147 4 7 The chemical formula of the mmpound formed by P and Q is PQz. Both P and Q are non-metals. What is the