Question

Please answer this question ​

Answer 1

first it's important to know,what is electrophile and neucleophile...

electrophile are the molecules which r electron deficient and can donate proton..

neucleophile are the atoms or molecule who can donate electrons

Now let's analyse this question

option 1) in this option,we can see that NO2^+ andBr+,both positively charged,so they will electrophile because they can donate electron..

CH3OH can donate OH^- ion ,also N3^- is negativily charged so it can donate electron...

so they both are nucleophile....

from this identification we can say that option a) is exactly right......

hope it helps