₦airaland Forum

U cnt put in agric. In lieu of bio. U cn stil chang ur utme subjcts itz nt 2late yet...biochm needz bio in jamb nd putme

shoskid: @br fynestbarrister, i got credit in 5 subject (eng math econs phy and chem) and i apply for biochemistry and i chose eng chem phy agric instead of choosing eng chem phy bio. br wat can i do?are dey going to accept agric for bio dough oau accept phy for bio in the o'level requirement br pls advice me

2diploid cells frm a parent diploid cell,anza z E

quivah: dis thread is educative... Its nyc avin it up... @ d end of mitosis,d no of cells produced frn a parnt cell is a,four b, six c, eight d,three e, two

Gr8t ifè i love u...anoda gr8t ifè z jxt a counterfeit!GR8T GR8T GR8T GR8T GR8T.

Ansa shld be D bt ntn ly k cacl,itz cacl2.itz nano3 then

oliseh.com:
one of d following is a good drying agent. a.NaOH b.KOH c.NaNO3 d.CaCl

A nd B,bt commonly b

Lateef9961: Wich of dix compound x usd 4 d absorptn of co2 in d lab?
(a)caustic pottash
(b)caustic soda
(c)slakd lime
(d)ammonia

K,no wahala

t.boy007:
ok i'll check it out may be some kind of mix up

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

t.boy007:
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

Let questnz com in plz,why d dry?

In 2010 then i had 84 in chm nd i bliev dat questn z part of my rite answers.if itz argon in series that means they r wrong.u cn even google search it nau

t.boy007:
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

Argon?itz unbelievable pls i need proof.thks!

t.boy007:
nice clue but it's B argon.....

U r on point,bt it has already reactd wit agno3 or cucl to form da precipitate,wich z copper(i)acetylide or silveracetylid then to recover the ethyne it hz to be acted upon by a dilute mineral acid

t.boy007:
i think it's AgN03...it has a substitutional reaction wit ethyne

U cn endure til afta putme,then u r free to do worefa kind of job irrespectve of hw much time it consumez.u r wldne bro!

ANDREW2EIC: Amen o! I don tire for teaching job. I will consider something else after jamb.

if u r bored wif da job pls kindly walkout of it,cuz it may affect ur competency in da xam hall,thinkn u av nt prepared wel.i undstnd u,itz nt easy to teach those small smal secndary sch studntz...it diminishez memory awarenez statuz unless the students r challenging and brainstormin.bt if itz coachn centre itz gud!

Wich of da follwn z a polysaccharide?a.dextrose b.insulin c.lactose d.laevulose

B Neon,4 high penetratn

t.boy007:
Which of the following is use in areodome beakon *please mind my spelling*
a)Hydrogen peroxide
b)neon
c)argon
d)helium

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

Hmm,i learn dat 2day.thks!

t.boy007:
you're good my bro...indeed H3P04 is a catalystic inhibitor but it's not suitable for H202.....(a) is the best answer

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,itz pyramidal in shape cuz da subscript more dan 2...'dou variatns may occur'making pentagonalbipyramidal

t.boy007:
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

1-A,2-A

Simplefemo: Coelom is absent in the class of animal termed?
A.mollusca B.reptila C.arthropoda D.coelenterata

2. The most recently evolved structure in animals is the
A.hair B.cilium C.scale D.feather

At least u hav done it all.itz jst da sign!i laud ur effort.

ANDREW2EIC: Thanks for the correction. I was thinking it would be Vo - V1. I am really improving from what I get here everyday. Thanks once again.

Sam here,bt i dnt thnk quittn is da best decision.wel,it dependz on da kind of work sha.GOD help us!

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

Very complete xplanatn and real workings.But u knw there z reductn of volume,dat z da diffrnc btw the new volume nd old volum shld b negativ cuz it resultz in a decreas in volume.da chang stil remainz Vf-Vo,whre that vf z lez dan Vo then da chang bcomes negativ wich bringz a negativ temperatur chang.thks for ur detailed xplanatn,any notice or objectn z welcm

ANDREW2EIC: Honestly, this question is too good to be jamb question, i.e, jamb can hardly give this kind of question considering time limit. Well, this is the solution:

Let the volume or cubic expansivity of the pot = ¥, initial volume of the pot = Vo, final volume of the pot = V1, change in temperature (To - T1) = T.
Therefore:
¥ = Vo - V1/VoT
(N.B the initial volume came first cos there was decrease in volume during temperature change, hence Vo>V1)

From the question, Vo - V1 = 0.20% of Vo. But 0.20% of Vo = Vo/500. Hence, Vo - V1 = Vo/500 = 0.002Vo = 2x10^-3Vo. Again, ¥ = 3 times linear expansivity of aluminium. ¥ = 3x23x10^-6/K, ¥ = 69x10^-6/K.
Substituting the values into the equation,
¥ = Vo - V1/VoT, 69x10^-6 = 2x10^-3Vo/VoT, Vo will cancel each other. Hence, 69x10^-6 = 2x10^-3/T.
Thus, T = 2x10^-3/69x10^-6, T = 28.9 degree celsius. Therefore change in temperature, T, is approximately +29 degree celsius.
Is that really lengthy? Well, that's the only way i could solve it for others to understands. Thanks for bringing this kind of question.

Thanks 4 ur commendmnt,am so apy nd challengd to av sum1 lyk u nd even sumodaz here.thks 1nc again!

ANDREW2EIC: Thanks for the compliment. I am not really surprised that you are from south-western part of Nigeria. Ordinarily, i believe that most guys from that region are academically outstanding. Well, I am from south-east.

wow! Ds z perfect,vry xplanatory stepz.thks 4dat

ANDREW2EIC: Length of resonance tube filled with water = 3/4 of 40 = 3x40/4 = 30cm. Therefore, the length of resonance tube filled with air, i.e, air column = length of resonance tube - length filled with water = 40 - 30 = 10cm.
At 2nd resonance, column of air = 3/4 of wavelength of the vibrating air(assuming i represent it with ¥). Hence, 10 = 3/4 of ¥. 10 = 3x¥/4. Multiply both sides by 4. 10x4 = 3x¥x4/4. 3¥ = 40. ¥ = 40/3 = 13.3cm. Therefore, wavelength,¥, = 13.3cm. Divide 13.3cm by 100 to convert it to metre. 13.3/100 = 0.133m. Hence, ¥ = 0.133m.
But, frequency,f = velocity(v)/wavelength(¥). F = ?, v = 334m/s, ¥ = 0.133m. Substituting:
f = 334/0.133, f = 2511.2Hz. Therefore, the frequency of the tuning fork is approximately 2511Hz.

I grt evrbdy here,neva relax.jxt a few dayz!

It wil b 50 then

bright007: that's your work to do bro.Its part of the task.

U need to av indicatd weda da divisn sign affects both da 2 sevens or only 1.luk ambigouz!

bright007: you are not sure.

Oh! Thks 4dat correctn,av miscalculatd AA for As.thkz 1nc again

Simplefemo: You have a point
cross between As and As should produce AA, As, As and Ss
AA- normal
As- carrier
ss-sickler
Hence the chance should be 1 out of 4= 1/4

dunsin88: hello nairalanders, am a medical student in OAU, Although OAU may be difficult to enter, going buy the hurdles of their post UTME, buh i tell you today, if you try your best possible and you enter into OAU, You will have every reason to smile cos of the many advantages and gains that the University has. I also help help people with UTME runz and admission into competitive courses like Medicine, law, acct, nursing etc. For more detailz, call*08031543954* 2go*dunsin88

u neva see xam merceneries flawlezly fail oau putme b4?u beta go sidown,runz ko ruinz ni.U r supozd to encourage nd sensitize aspirantz to study wel nd prepare for both putme nd skl studiez.ptueeee 4u!

bright007: This mathematical task may seem easy at first glance but facts has it that 92% of peeps fail it.
Let's see whether you are among the 8% that can solve it or in the 92% that cant.

[size=40pt] 7+7/7+7x7-7 [/size].After solving,scroll down for options








(A)00 (b)08 (c)50 (d)56

i thk itz A

Simplefemo: The homozygous condition Hbs Hbs results in sickle cell anaemia whereas HbA HbS has the sickling trait. What is the probability that a couple with the sickling trait will give birth to one normal child?
A. 1/2 b. 1/4 c.1/8 d. 0

As crozd with As cuz they are both carrierz,givz AA HEALTHY and NORMAL allele with 1/2 chanc,nd As healthy bt carrier allele with 1/2 chanc.so anza z A!

A resonanc tube z 40cm long.The second resonanc z heard when the tube z 3/4 full.what z the frequency of the tunin fork placed near the mouth of da tube?(velocity of sound in air z 334m/s) a.2511Hz b.1670Hz c.835Hz d.345Hz

ANDREW2EIC: Exactly. I guess u are a smart guy. Which part of Nigeria are u from?

u r smart 4bringn such a questn,thks!...and i strngly bliev doze r da kinda questnz jamb lovz to set.Am frm south-west,yourz?