₦airaland Forum

Edis4christ: 1) C
2) B
3) D
4) A
5) heptane has 9 isomers
6) D
PHYSICS
1) B
2) A

chem:4/6
phy:1/3
nice one

buzyguy: 4chem' 1-c 2-d 3-d 4-a 5-none,itz 9 isomers 6-d physcz,1-b 2-a 3-a

good trial bro...chem: 4/6
phy: 1/3

buzyguy: Wich of da follown z used to test btwn the amines?a.N2 B.HNO3 C.HNO2 D.(NH3)2CO3

C

buzyguy: Let questnz troop in plsss!

ok grab this:
chemistry:
which of the following is the increasing sensitivity to light?
a)AgI >AgCL>AgBr
b)AgBr >AgCL>AgI
c)AgCl >AgBr>AgI
d)AgBr >Agi>Agcl
2)the compressibility factor for a real gas is?
a)equal to 1
b)zero
c)not equal to 1
d)constant
3)at what ph scale will magnesium metal librate gas
a)>1
b)<1
c)>7
d)<7
4)what is the hybridyzation for diamond
a)sp3
b)sp3d2
c)sp2
d)sp3d
5)how many isomer has an heptane
a)5
b)8
c)7
d)6
6)which of the following is an antiknock
a)ethyne
b)2-methyl pentane
c)1,2-dichloroethane
d)none of the above

physics:
1)the major difference between x-ray spectrum and optical spectrum is?
a)they differ with intensity
b)they differ with colours
c)they differ with different metal
d)they differ with number of electron
2)in the conversion of galvanometer to ammeter,
a)a wire of low resistance in parallel
b)high resistance in series
c)multiplier in parallel
d)multiplier in series
3)the conductivity of a semiconductor increases with
a)decrease temperature
b)increased temp
c)increased pressure
d)constant
GOOD LUCK

buzyguy: Let questnz troop in plsss!

ok grab this:
chemistry:
which of the following is the increasing sensitivity to light?
a)AgI >AgCL>AgBr
b)AgBr >AgCL>AgI
c)AgCl >AgBr>AgI
d)AgBr >Agi>Agcl
2)the compressibility factor for a real gas is?
a)equal to 1
b)zero
c)not equal to 1
d)constant
3)at what ph scale will magnesium metal librate gas
a)>1
b)<1
c)>7
d)<7
4)what is the hybridyzation for diamond
a)sp3
b)sp3d2
c)sp2
d)sp3d
5)how many isomer has an heptane
a)5
b)8
c)7
d)6
6)which of the following is an antiknock
a)ethyne
b)2-methyl pentane
c)1,2-dichloroethane
d)none of the above

physics:
1)the major difference between x-ray spectrum and optical spectrum is?
a)they differ with intensity
b)they differ with colours
c)they differ with different metal
d)they differ with number of electron
2)in the conversion of galvanometer to ammeter,
a)a wire of low resistance in parallel
b)high resistance in series
c)multiplier in parallel
d)multiplier in series
3)the conductivity of a semiconductor increases with
a)decrease temperature
b)increased temp
c)increased pressure
d)constant
GOOD LUCK

buzyguy: Ok,chemstry:the product of reactn btwn excez ethanol nd conc.H2SO4 at 145degcelsiuz is,a.ethene b.ethanoic acid c. diethysulphate d.ethoxyethane

ethanol undergoes a dehydration reaction with H2SO4..at 180 degree c,ethene is formed and at 145 degree c at excess ethanol,ethoxyethane will be formed...so from my own point of view,i think the ans should be D
it's been a while away from thread

Which of the following DOES NOT undergoes additional reaction?
a) C2H4
b)CH3-CH triple bond CH-CH3
c)benzene
d)non of the above

Integrate 2x + 4/ x^2 + 4x + dx
a)log x + 4 + c
b)in x^2 + 4x + c
c) 2x/4 + c
d) 2x + 4 /2 + c

My first question on this thread:
write the two's compliment of the binary 11001?

Wao it has been a while looking forward to seeing a maths thread like this.....hmm infact,i've missed alot

Yello friends,how jacking things.......i pray we all get admitted into OBA AWON UNIVERSITY given our desired course this year oooo

p.josh:
Seems like i bleeped up a little bit in ma physics practical...I want 2 ask how many marks does waec pratical,obj,and essay.Especially Physics...Thanks

practicals carry considerable mark but there's still hope.....just tackle your physics theory and objective with the mind of not missing any question...i had same experience when i wrote waec.it was in my chemistry practical....i fuked up in the practical,but i wrote the theory and objective with the mentality of not missing just a single question and to the glory of God i passed it........so tackle the theory and objective......all shall be well

1.D
2.A
3.A

Fynestboi: I dn google am na error d tn dey ryt

lol !!

topsonkay: it's neon

confirm

Leystra: Please I need you guys to provide an answer to this...
I.Q test: Leye said if yesterday was 2morow, 2day will be Friday... Question - When did Leye speak... Send in ur answers if u r brilliant.

the yesterday is saturday,so if it's tomorrow,today will be friday,since yesterday is not tomorrow,then today will be sunday.thus,leye speaks on sunday

Fred120: We all are no longer aspirants but student hit Amena if u are sure,but is n't by mouth o,remember faith without work is like flogn a dead goat

AMEN oooo

According to my own point of view,reading is not worldly.........because the bible says "study to make yourself approve" every one reads at least one thing one way or the other...even bishops and pastors don't read bible only,they also read some other texts in other to get more knowledge of what's in the bible.......so mine is "NO"
MY VOTE MUST COUNT OOOO!! Lol

buzyguy: 1-c 2-b 3-i dnt knw ansa,cuz av nt heard of aldenone b4. lol

i'm sorry for replying late.....just that i was ban from posting....much thanks to olawalebabs who unban me..
(A) is the answer...i.e glucose
reason :because glucose is gotten from the group aldenone i.e alkanals which is known has aldoses

buzyguy: Let questnz com in plz,why d dry?

ok i'll check it out may be some kind of mix up

Which of the following is added to spirit that makes it undrinkable?
a)propanol
b)diluted HCl
c)methanol
d)glycerol
when the three (R) group in the triglyceride of a soap are thesame,the soap is said to be
a)hard
b)simple
c)complex
d)soft
an example of an aldenone sugar is
a)gluose
b)maltose
c)pentope
d)pepetose

Simplefemo: The answer should be Neon light.
They are used in aerodrome beacons as they have a high power of fog penetration.

ok.....to be more convinced,check ababio chemistry under the topic air and it's composition(function of rare gases are highlighted there) and chemistry jamb series i think 2010......well may be i might be wrong,but i think i'm sure

buzyguy: B Neon,4 high penetratn

nice clue but it's B argon.....

buzyguy: Another attempt,Which of the follown is used to regenerate ethyne frm itz precipitate?a.CuSO4 B.NAOH c.AgNO3 D.H2SO4

i think it's AgN03...it has a substitutional reaction wit ethyne

Which of the following is use in areodome beakon *please mind my spelling*
a)Hydrogen peroxide
b)neon
c)argon
d)helium

buzyguy: 1-A,bt i thnk itz hindered by H3PO4.2-B, 2 z subtractd frm that seven remaining 5,dat 2means bi,while dat 5means pentagonal making pentagonalbipyramidal

you're good my bro...indeed H3P04 is a catalystic inhibitor but it's not suitable for H202.....(a) is the best answer

shakur07: true talk bro ....me sef na fone engineering i dey practise bur i still dey read wella as no b everytym market dey come

BOY no de dull him self ooo...

ANDREW2EIC: I will be quitting my job 2moro. Book village on my mind.

bro,i've been working in a factory and in thesame vein reading......one just need to be smart

Grab this:
which of the following inhibit the decomposition of H202?
a)glycerol
b)Mn02
c)NaOH
d)oxygen
what is the shape of the compound of iodine and sulphur subscript 7 (IS7)?
a)linear
b)pentagonal bypyramidal
c)heptagonal pyramidal
d)trigonal bypyramidal

Simplefemo: 1. A- In esterification reaction, acid and alkanols condenses to give a dimer with the elimination of water molecule.
2. D- Reaction between NO2 and NAOH will form NANO3 and NANO2

number 2 is correct

ANDREW2EIC: Velocity(v) of the particle = dy/dt = 4x4xt^3 - 3x3xt^2, v = 16t^3 - 9t^2.
Acceleration(a) of the particle = dv/dt = 16x3xt^2 - 9x2xt, a = 48t^2 - 18t., but t = 3seconds, hence:
a = 48(3^2) - 18x3, a = 48x9 - 18x3, a = 432 - 54, a = 378m/s

therefore the acceleration of the particle is 378m/s.
My 2cent on the question.

respect my bros
.The question was extracted from oau post ume