OMG CHEMISTRY UNIT 1 PAPER!!!!!!!!!!!!

[Lost_Life]

WHAT THE FUDGE WAS THAT?

 

[ShaffaanVen]

It wasn't that bad, tbh. Just a little different compared to the other papers.

 

[B333]

It was REALLY different. What did you guys write for that electron affinity question down group 7

 

[Believer]

well I wrote it decreases down the group you ?

 

[shoaeb]

LOL..THAT ESCALATED QUICKLY!
i wrote decreases down the group cause the atomic number increases..more shielding..so there is less force of attraction between the new electron and the nucleus..
what was the element with the highest ionization energy?

 

[Lost_Life]

It was REALLY different. What did you guys write for that electron affinity question down group 7

decreases

 

[ShaffaanVen]

I wrote increases :| But gave the correct explanation ._. 2 marks anyway, bleh. -_-
Helium has the hghest first Ionization Energy.

 

[shoaeb]

I wrote increases :| But gave the correct explanation ._. 2 marks anyway, bleh. -_-
Helium has the hghest first Ionization Energy.

i wrote helium and i gave the reasons that the periodicity trend is that as we go along a period the radius decreases etc...
the mcqs were really hard..i messed up all the ionic equations.

 

[ShaffaanVen]

i wrote helium and i gave the reasons that the periodicity trend is that as we go along a period the radius decreases etc...
the mcqs were really hard..i messed up all the ionic equations.

I didn't find much of a problem with the MCQs. Just the one about the temperature change, Delta T thing? It was the trend question and why cracking is done that would've caught me if they did.

 

[Lost_Life]

I didn't find much of a problem with the MCQs. Just the one about the temperature change, Delta T thing? It was the trend question and why cracking is done that would've caught me if they did.

what about the hazards?

 

[ShaffaanVen]

what about the hazards?

That was easy I guess? KOH is an irritant at the least and hydrogen gas is flammable.

 

[Lost_Life]

That was easy I guess? KOH is an irritant at the least and hydrogen gas is flammable.

aha..

 

[ShaffaanVen]

What's the answer for the Delta T MCQ? o.o The number of moles were 5 times, so i think I took 5 Delta T?

 

[svenas]

Hardest paper I have ever faced in my whole lifeeee!

 

[Lost_Life]

What's the answer for the Delta T MCQ? o.o The number of moles were 5 times, so i think I took 5 Delta T?

nope. i guess it was 1/5

 

[ShaffaanVen]

Oh wait, it'd be delta T itself.

 

[Believer]

thats what I wrote delta T its self

 

[shoaeb]

for the Delta MCQ..in the begining i selected 1/5..cause the solution was dilute..so there would be less temperature change..and then i selected delta T itself.

 

[svenas]

what was the answer for cracking of ethane?

 

[svenas]

for the Delta MCQ..in the begining i selected 1/5..cause the solution was dilute..so there would be less temperature change..and then i selected delta T itself.

so what u thnk is the correct answer?