storing variables within variables

I have 2 sets of variables:

x={'test1';'test1'}
y=10

and

x={'test2'}
y=5

I would like to assign variable name chamber1 to the first
set and chamber2 to the second set. This way when I call
chamber1 I will see:

x={'test1';'test1'}
y=10

and when I call chamber2 I will see:

x={'test2'}
y=5

Is there a way to do this?

Thanks
.