How was p12 9701 2017

[haithsoul]

How about the question on heterogeneous catalyst the choices were:
1 haber process
2 contact process
3 formation of so3 in atmosphere( something like that)

 

[Zaki ali asghar]

A.All are

How about the question on heterogeneous catalyst the choices were:
1 haber process
2 contact process
3 formation of so3 in atmosphere( something like that)

A

 

[haithsoul]

A.All are

A

But no2 catalyses so2 and in the process it changes into no, doesnt that mean its homogeneous?

 

[Zaki ali asghar]

But no2 catalyses so2 and in the process it changes into no, doesnt that mean its homogeneous?

Third one was CO+NO=N2+CO2 so platinum is used here

 

[Zaki ali asghar]

you are confusing this q with the acid rain one where this thing about so3 was given

 

[haithsoul]

you are confusing this q with the acid rain one where this thing about so3 was given

I see my bad.

 

[Slayer10199]

1. What was the compound in Q2 where you had to find 9.03 something particles of oxygen atoms?

2. There was an equilibrium question about Z and Y when the pressure was increased and temperature remained the same. What was it's answer

 

[Hassan (SHT)]

1. What was the compound in Q2 where you had to find 9.03 something particles of oxygen atoms?

2. There was an equilibrium question about Z and Y when the pressure was increased and temperature remained the same. What was it's answer

1 For me it was 0.75 mol of SO2, I think B was the answer
2 No change on Kp since temperature remained same

 

[Zaki ali asghar]

1. What was the compound in Q2 where you had to find 9.03 something particles of oxygen atoms?

2. There was an equilibrium question about Z and Y when the pressure was increased and temperature remained the same. What was it's answer

B for 1 A for 2

 

[anastasia grey113]

wow guys ur theory went pretty well
m expecting a 48-54 in p2 :/

 

[Zaki ali asghar]

How are you guys preparing for phy P1,i did march 17 paper got 38.Dont feel like reading the book,any link for useful notes?

 

[Slayer10199]

Well another one was in organic, a chlorine substituted hexagonal ring was to have one chiral center. What was it?

 

[Zaki ali asghar]

Well another one was in organic, a chlorine substituted hexagonal ring was to have one chiral center. What was it?

which said there would be effervescence with Na2co3?

 

[Slayer10199]

which said there would be effervescence with Na2co3?

No. The one which there were chlorine molecules or OH substituted and we had to dehydrate to find out the molecule with one chiral center

 

[Zaki ali asghar]

justpastpapers.com/wp-content/uploads/2017/05/9702_m17_qp_12.pdf

 

[Slayer10199]

And the acid rain question's answer was A?
In which the first option was that oxides of sulfur and nitrogen contribute to acid rain.

 

[Cherry lava]

i think it was B? coz atomic radii was decreasing across period and en increasing

I'd go for option B too

 

[Dukula Jayasinghe]

Well, I am getting 39/40 for chemistry 1 since up to now I found out only 31 wrong(careless mistake)

 

[Dukula Jayasinghe]

Well, I am getting 39/40 for chemistry 1 since up to now I found out only 31 wrong(careless mistake)

 

[Evgeny]

What did you put for a question on pvc, on part B? There was something like does pvc molecule has n number of chiral carbon atoms.