NEET2025Chemistry-Mole Concept
NEET 2025 Chemistry Equal Number of Atoms MCQ Question
Type: MCQ-numerical-Easy-Class 11
Among the following, choose the ones with equal number of atoms.
A. 212 g of Na₂CO₃ (s) [molar mass = 106 g]
B. 248 g of Na₂O (s) [molar mass = 62 g]
C. 240 g of NaOH (s) [molar mass = 40 g]
D. 12 g of H₂ (g) [molar mass = 2 g]
E. 220 g of CO₂(g) [molar mass = 44 g]
Choose the correct answer from the options given below :
A
A, B, and C only
B
A, B, and D only
C
B, C, and D only
D
B, D, and E only
Correct Answer
Option B
Detailed Explanation
Calculate the number of moles for each compound and compare. B, D, and E have equal moles (4 moles each), hence they have the same number of atoms.
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