A hydrocarbon ( A) decolourised Baeyars reagent . It also react with con H2SO4 to form an alkyl hydrogen sulphate which on hydrolysis gives 2butanol . Ozonolysis of A form formaldehyde and propanaldehyde A is :
1, H2C=CHCH2CH3
2,H3CCH=CHCH3
3,(H3C)2C=CHCH3
4,(H3C)2C=C(CH3)2
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