₦airaland Forum

Kealmin:
lead is use because it increase d octane rating of d fuel making it a branch chain hydrocarbon

The ansa is E.

In the formation of anti-knock agent lead iv tetraethyl(pb(C2H5)4 which of the following element is use??
A)Na
B)pb
C)C
D)none
E)a and b

Segipaul:
i mean is pcl5 amphoteric too?

Been stable with d +5 oxidation num,it is neither acidic nor basic but it is a Neutral compound(due to is much stableness).

Segipaul:
what of pcl5?

They are still propably on thesame parallel just dat Pcl5 is of more stable compound cos phosphor which is group 5 element has and oxidation num of +3 and +5 and that +5 is kinda stable for them.
So pcl3 is more preferable.

tuwayz:
making an attempt instead of getting it right won't favour u on dis one because in objectives answering is either u r right or wrong

owk sire!

Which of the following compound is stable?
A)pcl3
B)p2O3
C)pcl5
D)all
E)none

Segipaul:
wich is it den?

It is A.

Segipaul:
C. Basic

u tried

Pcl3 is an example of?
A)amphoteric
B)neutral
C)basic
D)acid
E)none
In nature.

Segipaul:
ore of kCl shud be mineral sylvite or potash

Good! Sylvite or potash is a good example..etc
But the ansa is Propably Carnallite Kcl.Mgcl2.10H20

The volatility and non-volatility of a compound can propably be deduced by..?
A)elctronegativity diff
B)nuclear charges
C)oxidation num
D)solubilty

1)A only
2) A nd B
3)A,b,c and d
4)A,b and c

Kcl is found as an Ore in..?

Segipaul:
C. Electron

?? Is that all?? And no Objection?.

Have these pEepz!
The discrete particle responsible for a chemical reaction is.?
A)proton
B)neutron
C)electron
D)Nuclear charge.

Rummies! I greet Ooo.

Samgreguc: I jst tot of dat now and it can also undergo dispropornation on decomposition..... BaO2
--------> BaO + O2

Yea relating to its High proportion of Oxygen.

chimhigher: H=I square RT,which law supports dz

The H=heat I= current with R=resistance and t=time
Joules Law support this Sire.
which state that when a current of 1 ampere passed tru a given conductor of a Resistance per unit time.

agafiya: Lone pair is the same as unpaired electron in a chemical bond.

chimhigher: Coulombs Law.StateS that D Force.F acting on body of charges q and Q is Directly proportional 2 d product of Their charges nd inversely proportional 2 d square f THeir Distance R apart

Yea correct

mathefaro: Should be "Did I tell you" instead of "Did I told you"

It wouldn't be fair if I continued to overlook this error, although it may seem that I'm overreacting, but like I said earlier in this thread, we learn everyday and no-one is perfect. I only hope you don't take it offensively

Hmmm..
Not at all Sire

The volatile and none volatile produce of destructive distillation of coal are what and what respectively?

The intramolecular force responsible for the solidification and liquifaction of non-polar compound is ?

F=kqq/R (square)
which law support the above formula?

The calcium trioxocarbonate(iv) has how many lone and unpair electron?
And this property accounts for it....?

What element or compound gives a Hissing sound Pratically?
A)pbO2
b)p2O5
c)pcl5
d)p2O3

The polymorph Of silica exst in.......
A)2
b)3
c)1
and it physically grouped under two physical properties in respect to their shapes.....
Name the two form.

Ideal gas is never a real gas because?
A)it is a derive gas
b)it obeys charlse' and boyles' law
c)it does not obey the gas laws
d)none

Which of the followung compound is not volatile?
A)4p-1.8gcm3
b)sio2
c)p2O3
d)pcl3
e)none

Carbon(iv)oxide has how many lone and unpair electron?
With a net dipole of?

Rep UI naani!

Benjaminbest: bro i thought we sort out dis issue already why do u have to bring it here again

LoL.He propably have time for what is not worth it
Just LaffinG!

Ahmadjr: B

Yea Correct the A being an indefinite article is followed with a P.V