Can we redefine a PIC X(100) item to X(200)?

Can we redefine a PIC X(100) item to X(200)?

I have seen this question in many interview dumps? can someone answer that is it possible to redefine a COBOL variable to a larger size?

For example:

Can we 

10 VAR1 PIC X(100).

10 VAR2 REDEFINES VAR1 PIC X(200).

Is the above possible?