YBromine dej yog
ib kua txiv kab ntxwv ntawm bromine . Nws ua xim tsis muaj xim thaum nws shaken nrog ib qho alkene. Alkenes tuaj yeem decolourise bromine dej, tab sis alkanes tsis tuaj yeem. Cov slideshow qhia txog cov txheej txheem no.
Puas yog bromine dej ntshiab?
Ntxiv rau, cov dej bromine feem ntau yog siv los ntsuas qhov muaj cov alkens uas muaj ob daim ntawv cog lus, ua haujlwm nrog cov dej bromine, hloov nws cov xim los ntawm cov xim daj mus rau cov tshuaj tsis muaj xim..
Dab tsi xim yuav bromine dej tig?
Cov dej bromine hloov colourless lees paub tias muaj cov alkene. Cov bromine atoms tawg cov carbon-carbon ob daim ntawv cog lus thiab los ntawm C-Br bonds. Hom tshuaj tiv thaiv no yog hu ua cov tshuaj tiv thaiv ntxiv thiab qhov sib ntxiv ntawm bromine rau alkene yog hu ua bromination.
Vim li cas bromine dej xim av?
Cov dej bromine hloov ntawm tsis muaj xim mus rau txiv kab ntxwv. D. Cov dej bromine hloov ntawm xim av mus rau tsis muaj xim. Lus Qhia: Alkenes hnov qab nrog kev daws ntawm bromine hauv cov organic hnyav zoo li tetrachloromethane.
Cov xim ntawm bromine yog dab tsi?
Lub cev thiab tshuaj lom neeg
Free bromine yog reddish xim av kua nrog rau qhov muaj txiaj ntsig vapor siab ntawm chav tsev kub. Bromine vapor yog amber nyob rau hauv xim.
