Question

koi help kar dena bhai behan it is my request plz help me **both question **​

Answer 1

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2H2 + O2 ------>2H2O

2 mole of H2 give 1 mole of H2O

2 mole of H2 contain = 12L

1 mole of H2 form = 12/2 = 6L

the number of oxygen left = 8 - 6 =2L

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