Chemistry-Atomic & Molecular Mass
NEET Chemistry Atomic & Molecular Mass Assertion Reason Question
Type: Assertion Reason-assertion-Easy-Class 11
Assertion (A): The mass of one mole of carbon atoms is 12 grams. | Reason (R): The atomic mass of carbon-12 is taken as the standard for measuring atomic masses.
A
Both A and R are true and R is the correct explanation of A.
B
Both A and R are true but R is not the correct explanation of A.
C
A is true but R is false.
D
A is false but R is true.
Correct Answer
Option A
Detailed Explanation
The atomic mass of carbon-12 is used as a standard, and one mole of carbon atoms, which is approximately 6.022 × 10^23 atoms, weighs 12 grams.
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