Briefly, this "one month trial period" is just a common company policy for a lot of places these days. They are simply leaving it open to fire you, without cause or explanation, at any time in the first month. If it turns out you're woefully unqualified, or simply to difficult too work with, or they find someone more qualified, they want a simple out of having to pay you. That's
mostly what this trial means.
Now you also have to distinguish yourself during this first month, with hard work and knowledge. You should also take the initiative to let them know -- you're also evaluating them and this position during this month. Jobs may be scarce, but you'll only want to stay if the position is really good for you.
Now, some point by point insights:
What are the work tasks and working environment in pharma labs?
Now, even if you didn't ask, they should have told you
something about your tasks. Unless this is a completely entry-level straight of out college position. In which case, it wouldn't shock me to find that you're doing clerical work (entering data, checking reports, filing, yes, in a lab while wearing a lab coat) or buffer preparation and waste dumping. They usually give the newest person these sorts of tasks, so the more experienced people can perform other, more complicated tasks. You'll be trained on more advanced tasks as time permits and as their workload demands. Or I could be completely wrong, and they train you on specific advanced laboratory tasks immediately. Or if you have special skills, you may be called upon to start them immediately.
Working environment is such a general question, that I'll ask you to be more specific, unless I have to write another couple of paragraphs full of qualifying statements like that last one.
Which things can I learn before entering to that job?
You can learn anything you set your mind to. What you have to learn might have been worthwhile to ask. Try to think about what your interviewer talked about. Assume that want more of that.
I need help from pharmaceutical industry chemists or technicians. What are the hardest part of them?
Most days, my hardest part is my head, inside and outside. Ask anybody. You might want to work on sentence structure and diction.
What are the lab. equipments and analyse or process tasks of pharma laboratories? Im not good at using my hands in the jobs which needs flexible in manual dexterity.
Umm... I guess you'll find out later what your tasks are. Maybe you could give us the jist of the position's description.
What are the work-time hours of pharma companies?
Varies. Its worthwhile coming in early to setup experiments, check the instrument function, prepare reagents before most people come in. It also worth staying late when something odd happens and the test has to be re-done. Its sometime necessary to do both -- which is why some professionals are exempt workers. That is, they paid on salary, and are exempt from laws requiring overtime pay. Theoretically, such people have time off whenever their work is done, with pay. That rarely happens.
They wanted lots of hospital tests before joining to that job, this means it will be more risky work aura with chemical inhalation and risky work tasks.
Good. They have established a baseline your your health, if you're exposed to something that causes chronic damage, it will be indicated. Keep up with those checks.
Therefore it must be short work times in a routine laboratory days. Also it must be holiday in the weekends. Am I true or wrong?
I don't see how your conclusion follows logically from your previous statement. Also, no. Also -- LOL, no.
Although weekends are generally off, it gets expensive maintaining an entire facility, all the time. It does happen though. Usually, people work 5 days.