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  1. girlscampisra

    electro-magnetic spectrum

    V=450 nm I=520 nm B=560 nm G=600 nm Y=625 nm O=700 nm R=750 nm Radio wave = 3 m Microwave = 3 x 10^2 m Infra red = 10^4 m Ultra violet = 10^8 m X-ray = 10^10 m Gamma = 10^12 m
  2. girlscampisra

    bromine!

    is bromine vapour purple? is it less dense than air? does it vapourise readily?
  3. girlscampisra

    AS organic chemistry help needed!

    can anyone please post the list of all the conditions and reagents for organic reactions?! kindly help me out!!
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