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Page 1 of
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
by
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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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
exampaper
(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.
Page 2 of
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
by
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
exampaper
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
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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.
Page 3 of
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
by
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
exampaper
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.
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