MEDIUMMCQ SINGLEJEE Advanced ChemistryInorganic ChemistryMole conceptLaw of chemical combination, atomic & molecular mass, mole concept, calculations

19.7 kg of gold was recovered from a smuggler. The atoms of gold recovered are: (Au = 197)

A.[object Object]
B.[object Object]
C.[object Object]
D.[object Object]✓ Correct
Explanation

This question uses atomic structure & atomic mass. Relate mass, moles and number of particles using the mole concept and basic stoichiometry; doing the algebra gives the value listed in option D.

Atomic structure & atomic mass

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