How was Chemistry P1/2

[pakisatan123]

I did 30 but it was 50.

fm where u confirmed then corect one would be 0.5

 

[asd]

Thats what I thought too, until this forum proved me wrong koi nahi, percentile down hua toh A* aa jaye ga nahi toh an A is secured for sure inshAllah wbu? Tumhara kesa hua?

Chem was good. Physics was even better, and add math worst

 

[pakisatan123]

I did 30 but it was 50.

waiting fr ur reply

 

[azeem786]

can someone tell me answers of Q1 theory where we had to identify .and also the ionic equation?

 

[azeem786]

and what was the salt of no2 reacting with cac03

 

[plantaholic]

chem was the worst paper for me

 

[Aamynims]

yar question 2 may sirf zinc likh kay aaya hoon

i think i did the same! :/ i ran out of time. us question nay bohat dimagh kaharab kia tha toh after wasting like 5-8 mins on it, i went to other questions.. since im kinda slow, i ran out of time. in last 5 mins i wrote whateva i could think of.. :/

 

[Aamynims]

yar question 2 may sirf zinc likh kay aaya hoon

i think i did the same! :/ i ran out of time. us question nay bohat dimagh kaharab kia tha toh after wasting like 5-8 mins on it, i went to other questions.. since im kinda slow, i ran out of time. in last 5 mins i wrote whateva i could think of.. :/

 

[plantaholic]

yes thats what im asking.
whenever im like okay mine was wrong, someone posts that it was D. :S
D OR B??? :

you guys are worrying about a petty one mark.. and i have messed my entire paper... please pray for my chem exam

 

[17194]

Why not ? Cracking is fine but what is wrong with fractional distillation of air occurring to obtain elements.

You can't get hydrogen from fractional distillation of air. Air is made up of nitrogen, oxygen, noble gases, carbon dioxide and some water vapours, not hydrogen.

 

[17194]

no its answer was it decreases because heat released in precipitation
i confirmed it from internet,u may search

According to the theory of relativity E=mc^2, mass will change for a change in energy, but for such a small change, the change in mass is negligible. Anyways it mentions clearly in my chemistry book that the mass of the products and reactants is the same.

 

[Rimi]

If the 36th MCQ is being discussed. It was D.

what WAS Q 36? I forgot :l

 

[beeloooo]

yeah same ques 50 or 30

the concentration was 0.083 ... for those whose answers were 0.05 or something lyk that they messed it up

 

[Rimi]

the concentration was 0.083 ... for those whose answers were 0.05 or something lyk that they messed it up

Well then i really messed up cause my conc was 2 mol/dm3 :/

 

[beeloooo]

Well then i really messed up cause my conc was 2 mol/dm3 :/

umm yea may be u applied the wrong formulas !! but np !! i guess percentile will surely go down !!

 

[Rimi]

umm yea may be u applied the wrong formulas !! but np !! i guess percentile will surely go down !!

maybe. Yeah, let's hope so D:

 

[bogus]

graphite is a very good conductor agha saad. It was either molten sodium or mecury!

Metals r good comductors of heat class 2 se yaad kar rahe hain

 

[azeem786]

why no one replies to my questions

 

[azeem786]

Metals r good comductors of heat class 2 se yaad kar rahe hain

yAR molten sodium and mercury all are good cunductors the answer was graphite because it has few electrons only

 

[Doosh Bag]

In which question did we have to give source of hydrogen anyway ?

It's the only thing I can't remember.