Damayogenius18:
Which of this has this gas has the lowest intermolecular force..(A) hydrogen ( B) helium (C) oxygen (D) Nitrogen

Damayogenius18:
What is/ are the chemical bond in carbon monoxide.. (A) covalent ( B) dative ( C) covalent and dative ( D) vanderwaal and covalent

DrBESTJC:



Boss, I de hail oooo....

Sir,this your statement shocked me to the bone marrows and sent cold shivers down my spine......I mean,it really got me thinking!.It takes unimaginable courage to set a goal as this...


The last time I wrote UI post UTME,I scored 53(though not prepared at all due to some circumstances in my life then that were beyond my control).I am not the 'marathon jacking type'......my own na 'slow and steady'....





Abeg no leave us go into exile ooooo.Boys like us are really learning from bosses like you,Pes13,Orezy5,condomsir,boyejo123,Afoobabs,....and many others.

I can tell you that my high score in Jamb can as well be associated to the priceless tutorials I got from bosses in this forum...

There are so many things we learn here in seconds which can take you weeks to come across in textbooks.

So please,LET US JOINTLY HELP OURSELVES GET OUR HEART DESIRES THIS YEAR(Especially UI students(Even though we are still aspirants,but we don enter be that ooo ))

Many HEADS are always better than one!!!

Samsonyte:
Mathematics Questions
An arc of a circle of radius 14cm subtends angle 300 at the centre. Find the perimeter of the sector formed by the arc.

A 77.41cm² B 83.52cm² C 101.33cm² D 108.63cm²

The average age of the three children in a family is 9 years. If the average age of their parent is 39 years, the average age of the whole family is:

A 20years B 21 years C 24 years D 27 years

The variance of the scores 1, 2, 3, 4, 5 is
A 2 B 3 C 5 D 8

A man’s initial salary is N540 a month and increase after each period of six months by N36 a month. Find his salary in the eight month of the third year.
A N828 B N756 C N720 D N684

log 10r + log10r² + log10r 4 + log10 r 8 + log 10r 16 + log10 r 32 = 63, find r
A 1 B 10 C 100 D 1000

Find the equation of the locus of a point P(x,y) such that PV = PW when V = (1,1) and W = (3,5)

A 2x + 2y = 9 B 2x + 3y = 8 C x + 2y = 8 D 2x + y = 9

Damayogenius18:
..lol..u r correct..

Gracy3535:
are u using the invisible teacher

Papi112:


Answer.. Covalet bond
Y??
Ok c
D carbon as 4 electrons abi..valency oo
Oxygen as 6 abi .....

Now for dem to complete an octet rule each must have 8 valences abi

If carbon donates 2 electrons
And oxygen 4 Electons it mins 6 Electons Is binding dem together abi forming a triple covalet bond between dem
Now draw what I just said in a paper and count d number of electrons in each participating atom. (oxygen and carbon)
What did u find out each as a complete octet abi

Day solves it

But our oga go say wrong
But Dat d answer oo

Papi112:

Note rate of diffusion is inversely proportional to d relative atomic mass naw did says Dat d lower d diffusion rate d higher d molar mass of such element
For a gas to have a low diffusion rate d gas must have strong intermolecular force to bind dem together and resit set independent motion of d molecules of d gases in question Whit did said
Oxygen has d highest molecular mass hear so it has d lowest diffusion rate giving it d highest molecular force
In contract hydrogen has low molecular mass hence it posses d lowest intermolecular force... Answer is A

Also note dat d lower d density d lower d intermolecular force
Dis explains y hydrogen is used to fill balloon
Helium. Is also used but Dat if hydrogen moves faster due to loosened inter force..... I rest my case

Papi112:


Abeg no mind egbo oo d answer na fluorine oo
Electron affinity increases across d period and decrease down group for group 7 it starts with fluorine followed by chlorine then bromine so u c d electon affinity decrease hence d highest electron affinity goes to fluorine

Affinity ...ability to attract or wanting to gain
Electon.... Nagative charge particle

Put it together and form d answer
Now remember dat fluorine can displace any other elements in its group from der salt... Day to show u it Hunger for electron but chlorine can only displace does lower Dan it... Bromine iodine
Also it is d most electro nagative element


Don't be deceived fluorine is d answer

dolapo74:
Good morning
Which of the following oxides will NOT dissolve in both dilute
hydrochloric acid and 2M sodium hydroxide solution?
a) Lead (II) oxide b) Aluminium oxide c) Zinc(II) oxide d) Calcium oxide

Damayogenius18:
Which of this has the highest electron affinity in Group 7 .(A)Fluorine (B) chlorine (C) bromine (d)iodine..

Damayogenius18:
What is/ are the chemical bond in carbon monoxide.. (A) covalent ( B) dative ( C) covalent and dative ( D) vanderwaal and covalent

Damayogenius18:
Which of this has this gas has the lowest intermolecular force..(A) hydrogen ( B) helium (C) oxygen (D) Nitrogen

Samsonyte:
English Question
There is not ______ sense in what that politician has just said A many B plenty C lot of D much

Samsonyte:
1. C 2. D

Aybalance:
1.no option 2.B 3.A 4.C 5. B 6. C

Eben331:
D

Damayogenius18:
A

Hardebaryor:
1. C 2. D

Damayogenius18:
Whenever you read abt anything..make sure you know the trend and also the exceptions..In Carbon monoxide...carbon form two covalent bond and one dative bond with oxygen ...oxygen is the electron pair donor.....Electro Affinity is the energy released when a gaseous atom accept electron to form a gaseous negative ion..it decrease down the group because as we go down the group,a shell is added and the attraction of the positive nucleus to the electron decreases..so,the more the shell,the lesser the "EA"..the trend is ok from chlorine to iodine BT the exception is BTW chlorine and fluorine..... Although fluorine has lessee shell than chlorine e,it is too small..adding electron to it will cause little repulsion which lessened is EA than chlorine...

Damayogenius18:
..yes...if u don't have,you should get one...

Samsonyte:
Another Mathematics Question

x articles are produced at a total cost of N(2x^2 + 30x + 20), and each one is sold for N (x/3 + 100). Find the value of x which gives the greatest profit, and find this profit.

ivumar:


bro,are you sure there is no "subtraction" as one of the signs in the bolded expression? "The addition" sign is not giving me what it should

majormofor:
You all should forget about ur jamb scores o... U all got zero... *lol* no seriously.... the same person that got 200 n another day got 350 will still write the putme....And your jamb scores wnt be added into ur putme score o... So if u got 200 or 350, una get the same chance of getting admitted..

Damayogenius18:
In case of Intermolecular force,hydrogen shld normally av the lowest BT when I was reading, i saw this and I think it is appropriate to share it with you guys...the weakest intermolecular force is vander Waal's force...vander waal force increases as the number of electron of a species increases...hydrogen has the least electron and should have the least Intermolecular force BT somehow its helium.... I dnt also know why... A way around this is to remember that.. Helium is the most ideal gas(followed by hydrogen) the reason is because it has the least Intermolecular force....thanks guys... Am signing out finally..