Hello student once you're doing MBA then don't think much about your Bachelor course as it'll not much effect your future. Still if you have done Bachelor of technology in chemical engineering then sure  you'll get benefit, pharma company, chemical company will prefer you firstly rather than your batcmates who hadn't done B.tech in chemical engineering.

So don't think much about your bachelor course just focus on MBA and try to score good academics because marks matter very much in placements

Feel free to comment if you have any doubt

Good luck