Reason: An atom of aluminium is 27 times heavier than 1/12 th of the mass of the C-12 atom.
A. Assertion and Reason are correct, Reason explains the Assertion.
B. Assertion is correct, Reason is wrong.
C. Assertion is wrong, Reason is correct.
D. Assertion and Reason are correct, Reason doesn’t explains Assertion.
Answer:A
Reason: An atom of aluminium is 27 times heavier than 1/12 th of the mass of the C-12 atom.
A. Assertion and Reason are correct, Reason explains the Assertion. B. Assertion is correct, Reason is wrong. C. Assertion is wrong, Reason is correct. D. Assertion and Reason are correct, Reason doesn’t explains Assertion.