What company will do, if i send their offer letter to another company for salary negotiation?

I got offer from company A with 100% hike. I got second offer from company B with 50% hike. During salary negotiation with company B, I have sent the company A offer letter to company B. But company B is ready to give not more than 50% hike of current salary. But I accepted company B offer as back up option. I am going to join in company A.
If I will not joined with company B, Will company B expose myself to company A, where I have sent company A offer letter to company B for salary negotiation. If it is happened so, will company A revoke my offer with them?

Dear anonymous friend,
Is this question a real one sprouting out from the ignorance or indecisiveness of a highly employable person or a mere hypothetical one raised out of curiosity?
Your reasons for being very choosy about the highest paid job while keeping the lesser paid one as back up may sound very logical but not justifiable since both the offers are accepted by you one after another. No harm in orally citing the better offer from elsewhere to gain an edge in the salary negotiations with a prospective employer but I have my own doubt about the propriety of handing over a copy of an offer letter of one employer to another since it is confidential till its acceptance or rejection. Even after that when the second employer frankly restricts his final offer with only 50% hike and you accept that, how can you go back later?
In my opinion, it may end up in the situation that both the employers reject you as a non reliable candidate for appointment or confirmation later.
Remember please that honesty is the best policy.

I fully agree with what learned member Umakanthan has written.
The act of handing over offer letter of X company to Y company as bargaining chip is not in order.
Chances are bright that both the jobs may slip away with such conduct.

Dear colleague,
When you have decided to join company A which has offered you 100℅ hike, your accepting also offer from company B with 50℅ hike as back up is a classic case of murkier thinking. Most mean part is to share offer of A with B to negotiate a better deal. With such imprudent approach, no wonder, if you end up landing a situation of dhobi na es ghatka na us ghatka.
Regards,
Vinayak Nagarkar
HR- Consultant

Dear Anonymous Friend,
Obtaining offers from so many companies is not a problem but sharing to others will deem to be a mistrust and land up in moral and professional breach.