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#STATEWISE NTSE MCQ's CHEMISTRY Which of the following pairs | Class 9th MCQ - Pre-NTSE Quiz

#STATEWISE NTSE MCQ's CHEMISTRY

Which of the following pairs have the same number of atoms?
Anonymous Quiz
23%
16g of O2 (g) and 4g of H2 (g)
33%
16g of O2 (g) and 44g of CO2 (g)
26%
28g of N2 (g) and 16g of O2 (g)
18%
12g of C(s) and 23g of Na(s)
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