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Chemistry 21

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enthalpy kya thi? :p -49? and i guess structure in last question was 2 alcohols and 1 aldehyde ? :p
wat abt the 2 elements that form more than 1 oxides ?
 
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really 1 of the easiest exams !! i expect that P11 would have a curve of 30 or 29, i guess since P21 and p31 were 2 easy
 
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What was the colour of the reaction with HBr before and after the reaction was it brown to colourless or something else?
 
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What was the colour of the reaction with HBr before and after the reaction was it brown to colourless or something else?
lookin all over the internet just to know the reaction of HBr with ethene..cant freakin find the colour change in the internet ! from where do CIE get these stuff Oo
 
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and SO2 in the atmosphere forms SO3 ...... nybdy knows d value for enthalpy? evry1s gettin -49 ......
 
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EASY !! buttt the last question is messed up cuz everything is related to each other i was confused i think all is wrong :p
and becuz of my stupidity !!! in q 1 i put Al2O3 is basicc !!!! its amphotericc !!
 
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it was easy for me yh i messed up a bit in the scheepid last q...or else the paper was easy...:)
-49 enthaply..OH YEA ! :D
 
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