Chemistry: Post your doubts here!

[PixelsLevls]

It was the the number of unpaired electrons and the number of valence electrons.

I dont remember maybe it was unpaired...

 

[Mistar-Kigi]

Any of you remember that "Catalyst for acid rain" question? What was the answer for that one?

 

[potatocorn12]

no the answer was related to solubility of sulfates

I dont remember maybe it was unpaired...

 

[Kanekii]

Any of you remember that "Catalyst for acid rain" question? What was the answer for that one?

NO + 0.5O2= NO2

 

[PixelsLevls]

Any of you remember that "Catalyst for acid rain" question? What was the answer for that one?

Yeah, they asked how does the catalyst for acid reform.
The catalyst is NO2. NO2 reacts with SO2 to form SO3.
NO2 becomes NO in turn and is oxidized by the atmospheric oxygen back to NO2

 

[sushil bista]

Empirical formula of ester.

 

[PixelsLevls]

Does anyone remember the empirical formula of organic undergoing combustion?
It was one of the earlier questions

 

[Kanekii]

Does anyone remember the empirical formula of organic undergoing combustion?
It was one of the earlier questions

Oh yes Mr was 30-40 something
I dont remember clearly but it was C orD

 

[sushil bista]

Ch20

 

[sushil bista]

Answer of molecule that can form only 2 alkene

 

[Mistar-Kigi]

Does anyone remember the empirical formula of organic undergoing combustion?
It was one of the earlier questions[/QUOTE
The ans to that I believe was C C

Answer of molecule that can form only 2 alkene

Don't exactly remember but I guess it was C

 

[zap-cannon]

does anyone remember the organic question where it said what would form a ketone with 5 carbon atoms . all the options had pentane and an alcohol..

 

[afiya3456]

does anyone remember the organic question where it said what would form a ketone with 5 carbon atoms . all the options had pentane and an alcohol..

B

 

[zap-cannon]

wow. god is great !!! are you sure thats correct ? I put in B as well.

 

[A*****]

Sulfur had 6 valence electrons and 0 odd pairs of e?
Simple molecular structure poor electrical conductivity, low m.p and insoluble.

Sulfur has 2 unpaired

 

[Hisham Khan]

Sulfur had 6 valence electrons and odd pairs of e?
Simple molecular structure poor electrical conductivity, low m.p and insoluble.

ye

 

[Hisham Khan]

What about the halogen question where it asked about the trend in volatility of group 7 was the answer permanent dipole interactions increases?
For group 2 trend it was solubility of sulfates decreases.

yesss I chosed sulfatesss

 

[Hisham Khan]

i

i think it was induced dipoles not permanent

permenant in halogen compounds and vanderwall or iduced in only halogens

 

[Hisham Khan]

NO + 0.5O2= NO2

lmao I am lucky!

 

[Kanekii]

i

permenant in halogen compounds and vanderwall or iduced in only halogens

So it is induced or permanent?