Civil Engineering MCQJE Level Civil Engineering
RRB-style calculation: What is the mass of 3 mole of a substance having molar mass 58.5 g/mol?
Physics and ChemistryPhysics and ChemistryHARD
Choose the correct answer
A
175.5 g
B
0.05 g
C
61.5 g
D
19.5 g
Correct Answer
A. 175.5 g
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Mass = number of moles x molar mass = 3 x 58.5 = 175.5 g.
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This MCQ belongs to RRB JE Civil & Allied Engineering CBT-2 Full Mock Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.