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Assertion (A) : A single .^(12)C atom ha...

Assertion (A) : A single `.^(12)C` atom has mass exactly 12 amu and a mole of these atoms has a mass of exactly 12 gram.
Reason (R) : A mole of atoms of any element has a mass in gram equal to the atomic mass of the element.

A

Statement-1 is True, Statement-2 is True , Statement-2 is the correct explanation for Statement-1.

B

Statement-1 is True, Statement-2 is True , Statement-2 is not a correct explanation for Statement-1.

C

Statement-1 is True, Statement-2 is False.

D

Statement-1 is False, Statement-2 is True.

Text Solution

Verified by Experts

The correct Answer is:
A
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Knowledge Check

  • The atom of an element has 18 neutrons and 17 protons. The atomic mass of the elements is

    A
    35
    B
    17
    C
    18
    D
    1

  • 0.25 gram atom of an element weighs 45.2 g. The atomic mass of the element X is

    A
    11.3
    B
    180.8
    C
    45.2
    D
    54.8

  • If an atom of an element has twice the mass of C-12 , then its atomic mass will be nearly

    A
    12 u
    B
    24 u
    C
    36 u
    D
    48 u