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NEETChemistrySome Basic Concepts of Chemistry

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 abundant isotope of carbon and has been chosen as standard.

Options

  1. ABoth A and R are true and R is the correct explanation of A.
  2. BBoth A and R true but R is not the correct explanation of A.
  3. C(A ) is true but (R ) is false.
  4. DBoth (A ) and (R ) are false.

Correct answer

B. Both A and R true but R is not the correct explanation of A.

Step-by-step solution

Both Assertion and Reason are True But Reason is not correct explanation of Assertion Atomic Masses of the Element Obtained By Scientists by Comparing with the mass of Carbon comes out to be close to whole number

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