Record Performance
645 MCQ for effective preparation of the test of Basics of Chemistry section.
Read the MCQ statement: The atomic weight of Cu is 63.546. There are only two naturally occurring isotopes of copper, 63Cu and 65Cu. The natural abundance of the 63Cu isotope must be
, keenly and apply the method you have learn through the video lessons for Basics to give the answer. Record your answer and check its correct answer and video explanation for MCQ No. 121-2307.