MPSC PYQScienceenglish

How many grams of hydrogen can be obtained from two moles of formaldehyde (HCHO) considering 100% reaction and recovery? (Atomic weights: H = 1, C = 12, O = 16)

A.1 gram
B.2 gram
C.4 gram
D.30 gram

Correct answer: C

Source paper

MPSC Group B Combined Pre 2024 (English)

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