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GCE O5116

PHYS# An1 C 2 D

3 C

4 C

5 D

6 D

7 B

8 A 9 D

10 B 11 D

12 A 13 D

14 D

15 B

16 B 17 C

18 C

3 

O Level Paper 1

ICS ns Workin

2.30 + 0.Gradient At Z, graGradient From t=2Area undFrom t=2Using NeGreatest A: F = 80B: F = 80C: F = 80D: F = 80Sum of cF x 0.05 F = 160NWork don Increase increase iDull blacv = fλ f = (3 x 1Radio waTotal dist AmplitudLarger amP = IV I = 48 / 1Q = It = 4 x 2M at X, VM at Y, IVoltmeteLowest rethe fastesP = IV I = 12000

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Oct/Nov Sugges

ngs/Remar03 = 2.33 of Distance-T

adient is zero, iof Speed-Tim

20s to t=40s, grder Speed-Time20s to t=40s, diewton’s secondF would give g0 + 20 = 100N 0 – 20 = 60N 0 + 40 = 120N 0 – 40 = 40N clockwise mom= 20 x 0.40

N ne = 20000N x = 100000 kin average spein temperature

ck surface is go

108) / (1 x 10-10

ave is electromtance = distanc = 5 + 2 =

de of wave detemplitude gives

2 = 4A

2 = 8C V = IR = 0.6 x I = 6 / (10 + 20er has to be conesistance drawst.

0000 W / 2400

y exampape

v 2008 Ssted Ans

rks

ime graph = Spmplying speede graph = Acceradient is zero,e graph = Distaistance travelled law, resultantgreatest acceler

ments = Sum of

x 5000m kJ ed implies incr

e. Therefore, thood radiator of

0) = 3.0 x 108 Hmagnetic wave, ce of chart ima= 7m

ermines loudne louder sound.

10 = 6V 0) = 0.2A nnected in para

ws the greatest c

000V = 50A

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Science swers

peed d is zero. eleration (Rate, implying acceance travelleded = (40-20) x t force (F) is diration.

f anticlockwise

rease in averaghere is no changf heat.

Hz which is trans

age from mirror

ess of sound.

allel and ammecurrent from th

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(Physic

e of change of veleration is zero

10 = 200m irectly proporti

e moments

ge kinetic energge in state. [Op

verse wave. r + distance of

eter in series wihe cell, causing

r.com.sg. all r

cs, Chem

velocity) o (steady speed

ional to accele

gy, which in tuption A is elim

f patient from m

ith lamp. g the cell to los

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mistry)

d)

ration.

urns implies minated]

mirror

se its energy

d.

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19 D

20 A CHEM

21 D

22 D

23 B

24 D

25 B

26 A

27 A

28 D 29 C

30 A 31 C

32 D 33 A

3 

CompassFleming’

MISTRY A: To meB: AmouC: MeasuD: OveraAl3+ andin excessHoweverIons are fconfiguraMetallic Transfer Mg + 2HNo. of mNo. of mVolume oNo. of mNo. of mRatio of LB: BreakC: ChangD: CombLargest cPotassiumion to 0 iPotassium+6 (orangCarbon d3 chemicAcid + mAcid + baAcid + caRefer to pReactivitGroup I eAs the sizdiminishiI, ease of

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s needle follow’s left hand rule

easure rate of runt of CO2 produring cylinder iall, there is no cd Zn2+ react ws of NaOH. r, to be able to formed by atomation. bonding is fouof electrons oc

HCl MgCl2 +mole of Mg = 6 mole of H2 = 0.2

of H2 = 0.25 x mole of Li+ = 20mole of SO4

2- = Li+ : SO4

2- = 0king of C-H bonging of liquid inbustion releasesconcentration am iodide is a ren iodine molecm dichromate (ge) in Cr2O7

2- tdioxide is an accal reactions chmetal (e.g. magn

ase (e.g. magnarbonate (e.g. mperiodic table Gty of Group I eelements react ze of atom incring the attractif losing the val

y exampape

ws direction of me

reaction, time tduced is requiris need to meachange in heat

with NaOH to fo

react with an am losing or gai

und in metal. ccurs in ionic b+ H2 / 24 = 0.25

25 24 = 6 dm3

0 / 1000 x 1.0 =40 / 1000 x 0.2.02 : 0.01 = 2 :nd requires enento gas requires energy and highest temeducing agent bcule. 2I- I2 +(VI) is an oxidto +3 (green) incidic oxide, whharacteristic of nesium) esium oxide) magnesium carGroup V lements increaby losing theirreases, valenceve force of nucence electron i

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magnetic field

taken is requireed to follow th

asure a fixed voenergy.

orm Al(OH)3 a

acid (HNO3), Xining electrons

bonding.

= 0.02 25 = 0.01 : 1 ergy es energy

mperature resulbecause oxidat+ 2e- [oxidatioizing agent becn Cr2O3. [Redu

hich dissolves iacid are:

rbonate)

ases down the gr valence electre electron is gecleus on valencincreases and r

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lines as shown

ed. he reaction. olume of hydro

and Zn(OH)2 (w

X has to be a ca to achieve the

ts in fastest rattion state of I in

on] cause oxidationuction] in water to give

group. ron.

etting further awce electron. Threactivity incre

r.com.sg. all r

n.

ochloric acid

white ppt), whi

arbonate, but ne stable noble g

te of reaction. ncreases from

n state of Cr de

e carbonic acid

way from nucleherefore, goingeases.

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ich are soluble

not a sulphate.gas electronic

-1 in iodide

ecreases from

d.

eus, down Group

d.

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34 A

35 D 36 C

37 D 38 B 39 D 40 B  

3 

Copper dMagnesiuthan Zn i Nitrogen Oxygen ~Noble Ga Addition Oxidation

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does not react wum is above zinin the reaction

~ 79% ~ 20% ases ~ 1%

reaction of alkn of alcohol (e

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with acid becaunc in the metalwith acid.

kene (vegetable.g. propanol) g

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use it is below l reactivity seri

e oils) with hygives carboxyli

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hydrogen in thies. Therefore,

drogen gives aic acid (e.g. pro

r.com.sg. all r

he metal reactivMg produces

alkane (margariopanoic acid)

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vity series. more bubbles

ine).

d.