@YusufHasan Hi. Yes it definitely helped. I also saw your reply to my comment, then you deleted it and edited your answer. I'm constantly having a track of it. But I think it might take some more time to understand it completely. Sorry for not accepting. I understand the effort you've put in your answer.
No there's no problem with the effort, but what's more important is that the OP's query should be resolved satisfactorily. Where exactly are you queasy with my line of though there?
Maybe I can elaborate more here informally inchat @GuruVishnu
Thanks. I'll let you know if I've any doubts after going through it again. Sometimes, in chemistry, things become so obvious after iterated reading. It's an error on my side.
@YusufHasan: Hi. When you're back here, can we discuss about that answer? I think the character limit in the comment section is slightly disturbing. However, for others shall we just bookmark this conversation and link it below your post?