Q39Assertion & reason
Assertion (A): One atomic mass unit is defined as one twelfth of the mass of one carbon-12 atom.
Reason (R): Carbon-12 isotope is the most abundunt isotope of carbon and has been chosen as standard. (i) Both A and R are true and R is the correct explanation of A. (ii) Both A and R are true but R is not the correct explanation of A. (iii) A is true but R is false. (iv) Both A and R are false.
- (i)Both A and R are true and R is the correct explanation of A.
- (ii)Both A and R are true but R is not the correct explanation of A.
- (iii)A is true but R is false.
- (iv)Both A and R are false.
Show answer
(ii) Both A and R are true but R is not the correct explanation of A.