Why does the bromine become polarised in HBr during electrophilic addition
A C to C double bond has a high electron density. As the bromine gets close to the C=C bond the high electron density repels the electrons in the H-Br bond further towards the H making the H slightly negative and the Br slight positive.
RC
Related Chemistry A Level answers
All answers ▸Calculate the pH of a 0.025 mol dm-3 solution of methanoic acid. For HCOOH, Ka = 1.58 x 10-4 mol dm-3
Explain why the boiling point of PH3 is lower than the boiling point of AsH3
Why do elements give off coloured light when heated?
Explain why the second ionisation energy of boron is higher than the first ionisation energy of boron.