Assertion : The standard unit of expressing mass of atoms is called 'u' Reason :'u' represents unit mass.

Assertion : The standard unit of expressing mass of atoms is called 'u

1.	Assertion : The standard unit of expressing mass of atoms is called 'u' Reason :'u' represents unit mass.
Answer» If both assertion and reason are CORRECT and reason is correct EXPLANATION for assertion If both assertion and reason are correct but reason is not correct explanation for assertion If assertion is correct but reason is incorrect If both assertion and reason are incorrect Solution :u' represent UNIFIED mass.