In the reaction, Ca + 2H₂O = Ca(OH)₂ + H₂ ; what volume (c.c.) o – McqOptions

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1.	In the reaction, Ca + 2H₂O = Ca(OH)₂ + H₂ ; what volume (c.c.) of hydrogen at STP would be liberated, when 8 gm of calcium reacts with excess water? (atomic weight of calcium = 40)
A.	480
B.	240
C.	120
D.	0.4
Answer» B. 240

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