Dinesh's answer to Peng Yu's Junior College 1 H2 Maths question.

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Dinesh
Dinesh's answer
8 answers (A Helpful Person)
1st
2 bromo compound is tertiary, hence there will be elimination instead of substitution. Hence the bromide ions are not generated.
However for 1 Bromo Alkene is primary and there will Be substitution reaction and bromide ions will be generated.

If bromide ions react with silver nitrate then percipitate is formed. Hope this helps.