RI Y2 LOWER SECONDARY SCIENCE EOY 2016

NAME: CLASS: NO: ~-------- ____ J_ __ --1----- RAFFLES INSTITUTION 2016 END OF YEAR EXAMINATION Subject Level Date Time SCIENCE YEAR2 13 Oct 2016 (Thursday) 0800 - 0945 (1 h 45 min) INSTRUCTIONS 1. Do not turn over the page until you are told to do so. FOR EXAMINER'S USE 2. Write your name, index number and class in the spaces at the top of this page, the top of each section and on the OT AS sheet. 3. Read all instructions and questions carefully. 4. This paper consists of FOUR SECTIONS. • Section A Answer all questions on the OTAS sheet. • Sections B, C, and D. Answer all questions in the spaces provided. Bonus questions (marked with *) are optional. ~- All working must be shown. 7• The ~se of a calculator is allowed. . . • Candidates are reminded that all quant1tat1ve answers should include appropriate units and should be given a sensible number of significant figures. Errors in units and 8 numbers of significant figures will be penalized. • After the examination, please hand in the following ~aratel~ to your invigilator: • OTAs sheet • s , Sections A and 8 booklet , ection C booklet Section D booklet Section Marks A B C D T9tal /~5 ~ OUE:'cs:";r~,o~N-:--:P::-A-:-:P-:-E::-:R::-C-::-0-::-:-:-N:::-Sl:-:::S:::T:::-S--:O:-::F:-:2~2--:P:-::R:-:-:I N~T=-E=-0---PA_G_E 5 EXCLUDING THE COVER PAGE. 109 _,./~

; ,;' ,.,. /·'---·.•.'·-'• •rt•· f}tjf/p/; 0~-,/;•:f/p'·',./;,,,,Y, .. :rl.1{17-f!:;)j("'-'i~'-1 .,r-/1."•"· ,,y,,,,1-., .,7,. •-:·1/jpt.,,., '· j.,1, 1 ,,;J/fY;,.,~1,,,1/4.')!'/.'./, Section A (25 markfil Answer ALL Questions Four possible answers A, B, C and D are given ti . nswer and record it on the OT As answer sheet or ~dach question. a p • d' T bl . . prov, ed Choose the most appropriate A COPY of the eno Ic , a e 1s given on Page 10_ • Which statement is true for a nitride ion? A B C D It has an equal number of protons and electrons. It has more protons than electrons. It has the same charge as a fluoride ion. It has the same number of electrons as a neon atom. Element Y forms a covalent compound with fluorine with the formula Yf3. Which Group of the periodic table could Y be in? A B C D Group I Group II Group V Group VII What is a property of ammonia? A B C D It conducts electricity in aqueous state. It has a giant lattice structure. It is a liquid at room temperature and pressure. It turns moist blue litmus paper red. t form effervescence? Which pair of substances react 0 - substance 2 substance 1 sulfuric acid -A copper ammonia -~B hydrochloric acid water - ~ sodium - - nitric acid -D zinc chloride -~ . A person looks into the mirrors . two mirrors. . t O viewed using The diagram shows an obJeC f Q? • age o • as shown. Where is the 1m 111 --- .. -,-r, -:---;:,, ,.., .. : ! 'I • .' l 1 :-~·"•~:.:.t.~·: . /4 ~~ :!?~:-\) : -,/' ,( 'lf:;1t/:j:~ l:1 '<i/ .. ::. ,, IIIJill! ,,.y///:-'· /i/ • i-:?lflx.r:\_,r': .. J: t: i✓ -1,·1,. ,W ;, ·, ,; '11/1 /'j