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Chemistry Paper 22 3rd Nov

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Hypernova:
or was it Br2?

$!$RatJumper$!$:
I got my two processes as:

1) Thermal Cracking- Uses 400-900 degrees celsius, 70 atm
2) Catalytic Cracking- Uses 450 degrees celsius, >1 atm, Zeolite Catalyst

For the last question my answers were:
 
NaBr
Br2
Sulphuric Acid acts as a much better oxidizing agent

What did you guys get?

Hypernova:
But we didn't have to mention conditions, right?
Just saying Temp and catalyst should've been fine. Wasn't that 2 marks?

Deadly_king:

--- Quote from: Hypernova on November 06, 2010, 04:08:07 pm ---But we didn't have to mention conditions, right?
Just saying Temp and catalyst should've been fine. Wasn't that 2 marks?

--- End quote ---

Nope.

The question actually asked for the conditions of the two different processes.

I didn't know about thermal cracking. :-[
My answers were :
1. Catalytic cracking ---> Temp : 500 and catalyst aluminium oxide

2. Temp : 600 and Silicon dioxide.

Those are similar processes but my teacher somehow told me it might be good. I doubt it though :-\

The last question, i also opted for bromine.

But the other gas, whether sodium bromide or iodide, would have been sulfur dioxide.

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