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paper 12 chemistry ...

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in emission hydrocarbon has been burnt ...it doesnt depend upon dat 73% nitrogen in air ...LOL :D
 
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dat harmful or not harmful one questn is an another one....whch is Hydrogen..A
 
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hey one questn is tht...it doesnot decolourises aq bromine...i go with ethene...anyone remember??
 
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yea but question is 2 thngs r given abt tht X....n told tht X cant decolorise aq br2...so Ethene :)
 
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wb dat HCl n Hbr one....bond energy...bond length increses n ploarity increses...in last 30 to 40 qs
 
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