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
Correct answer: C