Chemistry: Post your doubts here!

[Hisham Khan]

Guys what did you guys put for the enthalpy of neutralisation one. The - 114 one.. i put C.. . it also had 114

It was -114

 

[Hisham Khan]

It was -114

Neuta is exo.It was repeat

 

[zap-cannon]

Guys what did you guys put for the enthalpy of neutralisation one. The - 114 one.. i put C.. . it also had 114

Hmm. I dont remember the letter but it is 114. I have seen this ques. Before. W12 varient 3 iirc

 

[Hisham Khan]

Hmm. I dont remember the letter but it is 114. I have seen this ques. Before. W12 varient 3 iirc

I dont think there was a positive one anyway but if there was it was -negative.
This q was actualy repeated 3 times.
2nd time it was same thing but a lil bit change and answer was -57.but this time its -114 again hopefully

 

[zap-cannon]

Yeah it was 114 nevertheless..

 

[M.@(-)M@D $0(-)@!L]

The third option for that question between ammonium sulfate and barium oxide where white ppt formed was that brown gas given which is wrongly because ammonia released not nitrogen dioxide which has a characteristic colour of brown.

 

[Hisham Khan]

The third option for that question between ammonium sulfate and barium oxide where white ppt formed was that brown gas given which is wrongly because ammonia released not nitrogen dioxide which has a characteristic colour of brown.

YESSS I CHOOSED B.IT WAS SULFATE THATS WHY YESSS

 

[Hisham Khan]

I PICKED MOLE RATIO SAME KP SAME BUT CHANGED MOLE RATIO TO INCREASED AT LAST SECOND

 

[Hisham Khan]

I PICKED MOLE RATIO SAME KP SAME BUT CHANGED MOLE RATIO TO INCREASED AT LAST SECOND

People say increase is correct tho lol

 

[abbas haider]

People say increase is correct tho lol

was'nt it a reversable reaction?? with unequal mol on both sides? if that is the case then ans was increase

 

[Tauqir_hamed]

it was : mole fraction increase, Kp no change as far as i can remember

 

[Hisham Khan]

it was : mole fraction increase, Kp no change as far as i can remember

What about the oxide.Wasit SiO2.Cause Al2O3 ,p4o10 and other acidic oxide react?

 

[Kanekii]

What about the oxide.Wasit SiO2.Cause Al2O3 ,p4o10 and other acidic oxide react?

Yes SiO2.

 

[Kanekii]

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

 

[Kanekii]

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.

 

[Kanekii]

What was the answer of q37/38 something it was in which a gas syringe diagram of heating was shown in it was the option C since oxidation of alcohols require reflux heating?

 

[Mts.99]

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.

i think it was induced dipoles not permanent

 

[Mts.99]

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

didnt they ask unpaired e?

 

[Kanekii]

i think it was induced dipoles not permanent

I literally was going for induced dipole but then i still choose the latter idk why xD

 

[Kanekii]

didnt they ask unpaired e?

I dont remember maybe it was unpaired...