Hello,

I have questions about Muktzeh and how to relate to it.

1. Is the prayer of someone wearing pants with Muktzeh items invalid? Let me give an example. If you go to Friday night service and you have in your pocket Muktzeh items like car keys of doubtful Muktzeh like a cellphone (I said doubtful because in my opinion it seems that the status depends on the use you give to it and if the person sees electricity as fire, etc). Since you are carrying them and wearing something that covers you is essential for prayer to be valid, and the clothes you are wearing may be Muktzeh, is prayer still valid?

2. Is a keychain that contains all your house keys and the car key as well necessarily Muktzeh? I read it depends on most important keys.

3. What is really Muktzeh? I read the S”A and it seems that everything is permitted except for thinks that you don’t move because they are very expensive and have just one function, like a shochet knife. At home we barely have things like this and it seems that if you plan to use something and it doesn’t cause a real melacha it is permitted.