JJC_H2_CHEM_P1_Qn

CANDIDAT NAME CLASS CHEMI Paper 1 M Candidates Additional READ THE Write in soft Do not use Write your n been done f There are f answers A, Choose the Read the i n Each correc Any rough w The use of a JURO 2015 J Highe TE 15S STRY ultiple Choi s answer on Materials: SE INSTRU t pencil. staples, pap name, class for you. forty questio B, C or D. one you co nstructions ct answer wil working shou an approved T ONG JUNIO JC 2 PREL er 2 ce n separate Multipl Data B CTIONS FIR per clips, high and exam in ons on this p nsider correc on the Answ ll score one m uld be done i d scientific ca This docume OR COLLEG LIMINARY E paper. le Choice A Booklet RST hlighters, glu ndex number paper. Answ ct and record wer Sheet v mark. A mar n this bookle alculator is ex ent consists o GE EXAMINAT Answer Shee e or correctio r on the Answ wer all quest d your choice very carefull rk will not be et. xpected, whe of 16 printed TION et on fluid. wer Sheet in tions. For e a e in soft pen y. deducted fo ere appropria pages and 0 the spaces ach question ncil on the se r a wrong an ate. 0 blank page 9 17 Septe provided un n there are f eparate Answ nswer. e. [Turn over 9647/01 mber 2015 1 hour less this has our possible wer Sheet. r 5 r s e

2 ©Jurong Junior College 9647/01/ J2 PRELIMINARY EXAMINATION/2015 Section A For each question there are four possible answers, A, B, C, and D. Choose the one you consider to be correct. 1 Use of the Data Booklet is relevant to this question. A 5.00 g sample of an anhydrous Group II metal nitrate loses 3.29 g in mass when heated strongly. 2M(NO3)2(s)  2MO(s) + 4NO2(g) + O2(g) What is the metal? A magnesium B calcium C strontium D barium 2 Use of the Data Booklet is relevant to this question. Which element has an equal number of electron pairs and of unpaired electrons within orbitals of principal quantum number 2? A oxygen B nitrogen C carbon D beryllium 3 Equations involving four enthalpy changes are shown. Na(g) → Na +(g) + e ∆H = w Na(g) → Na2+(g) + 2e ∆H = x Na(s) → Na(g) ∆H = y Na(s) → Na2+(g) + 2e ∆H = z Which expression represents the second ionisation energy of sodium? A 2 w B x – w C y + x – w D z – y 4 Which of the following exerts the highest pressure? A 1 mol of H2O at 27 oC in 1 dm3 B 1 mol of CH4 at 0 oC in 22.4 dm3 C 1 mol of N2 at 0 oC in 11.2 dm3 D 1 mol of N2 at 27 oC in 22.4 dm3

3 ©Jurong Junior College 9647/01/ J2 PRELIMINARY EXAMINATION/2015 [Turn over 5 Use of the Data Booklet is relevant to this question. Element Y has atomic number less than 20. The graphs below s