Vim li cas bromine Decolourise thaum ntxiv rau alkene?
Vim li cas bromine Decolourise thaum ntxiv rau alkene?

Video: Vim li cas bromine Decolourise thaum ntxiv rau alkene?

Video: Vim li cas bromine Decolourise thaum ntxiv rau alkene?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Kaum ib hlis
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Bromine rhuav tshem ob daim ntawv cog lus ntawm cyclohexene (thiab tag nrho alkenes ), ua rau cov qauv molecular hloov thiab yog li cov molecule lub zog hloov. Bromine Nws yog ib qho reactive heev vim nws tuaj yeem tsim cov dawb radicals, uas txhais tau hais tias muaj ib qho molecule ntawm Br nrog ib qho tsis sib xws ntawm electrons.

Ib yam li ib tug yuav nug, vim li cas cov xim ploj thaum bromine reacts nrog alkene?

Thaum twg bromine reacts nrog alkene , liab tsaus xim ntawm Br2 ploj sai li cov atoms ntawm bromine tsim daim ntawv cog lus nrog cov pa roj carbon atoms hauv ob daim ntawv cog lus. Yog tias xim ploj sai heev, peb paub tias cov compound muaj ib qhov chaw tsis txaus.

Tsis tas li ntawd, cov tshuaj tiv thaiv dab tsi tshwm sim thaum alkene Decolourise bromine hauv tetrachloromethane nyob rau hauv lub hnub ci? Cov tshuaj tiv thaiv nruab nrab ntawm hexene thiab bromine hauv muaj nyob ntawm lub teeb muab 3-bromocyclohexene.

Yuav ua li cas thaum koj ntxiv bromine rau alkene?

Alkenes react nyob rau hauv txias nrog cov kua ntshiab bromine , los yog nrog ib tug daws ntawm bromine nyob rau hauv cov organic hnyav xws li tetrachloromethane. Ob daim ntawv cog lus tawg, thiab a bromine atom ua txuas rau txhua cov pa roj carbon. Cov bromine poob nws cov xim liab-xim av kom muab cov kua tsis muaj xim.

Yuav ua li cas thaum cyclohexene reacts nrog bromine?

Tom qab ntawd bromonium ion raug tawm tsam los ntawm sab nraub qaum los ntawm bromide ion tsim nyob rau hauv ib qho ze tshuaj tiv thaiv . Cyclohexene reacts nrog bromine nyob rau hauv tib txoj kev thiab nyob rau hauv tib txoj kev raws li lwm yam alkene. 1, 2-dibromocyclohexane yog tsim. Cov tshuaj tiv thaiv yog ib qho piv txwv ntawm electrophilic ntxiv.

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