10 g of hydrogen and 64 g of oxygen were filled in a steel vessel and exploded. Amount of water produced in this reaction will be

Answer

B

Explanation

`underset(10 g = 5 mol)(2H_(2)) +underset(64 g =2 mol)(O_(2)) to 2H_(2)O`
Limiting reagent is `O_(2)`
1 mole of `O_(2)` gives 2 mole of `H_(2)O`
`therefore` 2 moles of `O_(2)` will give 4 moles of `H_(2)O`